APA (7th ed.) Citation

Adcock, C. (1979). Fundamentals of psychology (1st ed., 9th reprinted.). Penguin Books.

Chicago Style (17th ed.) Citation

Adcock, C.J. Fundamentals of Psychology. 1st ed., 9th reprinted. Middlesex [etc.]: Penguin Books, 1979.

MLA (9th ed.) Citation

Adcock, C.J. Fundamentals of Psychology. 1st ed., 9th reprinted. Penguin Books, 1979.