APA (7th ed.) Citation

American Psychological Association. (1969). Professional psychology: Research and practice. APA.

Chicago Style (17th ed.) Citation

American Psychological Association. Professional Psychology: Research and Practice. Washington, DC: APA, 1969.

MLA (9th ed.) Citation

American Psychological Association. Professional Psychology: Research and Practice. APA, 1969.

Warning: These citations may not always be 100% accurate.