APA (7th ed.) Citation

Flugel, J. C. (1933). A hundred years of psychology, 1833-1933. Duckworth.

Chicago Style (17th ed.) Citation

Flugel, J. C. A Hundred Years of Psychology, 1833-1933. [London]: Duckworth, 1933.

MLA (9th ed.) Citation

Flugel, J. C. A Hundred Years of Psychology, 1833-1933. Duckworth, 1933.