APA

Publication manual of the American Psychological Association, . (2002). Publication manual of the American Psychological Association. Washington: American Psychological Association.

Chicago

Publication manual of the American Psychological Association, . 2002. Publication manual of the American Psychological Association. Washington: American Psychological Association.

Harvard

Publication manual of the American Psychological Association, . (2002). Publication manual of the American Psychological Association. Washington: American Psychological Association.

MLA

Publication manual of the American Psychological Association, . Publication manual of the American Psychological Association. Washington: American Psychological Association. 2002.