The Psychological American Psychological Association
(APA)
This process of documentation requires that you acknowledge those whose work you have:

An in-text (within the paper) citation identifies where another's words, facts or ideas are being used.

The basic form of the APA in-text parenthetical citation consists of:

• Author's last name and a date.
• A comma follows the author's name.

Example:
In a recent study of reaction times (Millard, 1970) no change was noticed.

If the author's name is mentioned in the text, follow with the year of publication cited in parentheses.
Examples:
When Millard (1970) compared reaction times among the participants, he noticed an increase in errors.

If the year and the author are in the text:
In 1994 Pradha found improvement in short-term memory with accompanying practice.

Page number(s) in a citation:

may be given for indirect citations
MUST be given for direct quotations.

A comma follows the date if page numbers are given. Page numbers are preceded by p. or pp.
Example:
Many others agree with the assessment that “this is a seriously flawed study” (Methasa, 1994, p.22) and do not include its data in their own work.

Example of two or more sources used in a single sentence:
While Porter (1994) suggests that the ecology of the aquifer might be hardier than suspected “given the size of the drainage area and the nature of the subsurface rock”
(p. 62), there is no reason to believe that the county needs another shopping mall in a vicinity described as “one of the last outposts of undisturbed nature in the county” (Martinez, 1992, p. 28).

The second type of documentation needed is the Reference page:

• It is a separate page at the end of the paper. Center the title “References” at the top of the page.
• Include all sources cited in the paper, electronic and print.
• It should have a hanging indent.
• It is ordinarily double spaced.
• Arrange alphabetically by author. If there is no author, alphabetize according to the first significant word in the title of the source.
• Main works are italicized on the Reference page.
• Capitalize only the first word and any proper nouns and adjectives in the title of a work. Within a title, capitalize the first word after a colon.
  
  Reference entry for a book:
  Author(s) last name, First Initial. Middle initial.
  followed by a period and one space
  (Date of publication in parentheses).
  followed by a period and one space
  Title of work italicized.
  followed by a period and one space
  Place of publication:
  followed by a colon and one space
  Publisher.
  followed by a period
  
  Example:
  Pearce, J. L. (1993). Volunteers: The organizational behavior of unpaid         workers. London: Routledge.
• 
  Reference entry for an article in a scholarly journal or magazine:
  Author, Initial(s). (date).
  (same as previous format)
• Title of the article. (not italicized)
  followed by a period and one space
• Name of periodical italicized,
  followed by a comma and space
  (the entire name of periodicals is capitalized)
• Volume number,
  followed by a comma and space
• Page numbers.
  followed by a period
• 
  Example:
  O'Meara , J. T. (1989). Anthropology as empirical science. American           Anthropologist, 91, 354-369.

• More examples of both in-text and reference citations are available in the College Learning Centers.
• 
  For online references see the APA Style.org at
  http://www.apastyle.org/
• © 2003 American Psychological Association
• For unusual entries check the latest publication manual (located in CCC's library) for the American Psychological Association.