APA (7th ed.) Citation

Guilford, J. P. (1950). Fields of psychology, basic and applied (2d ed.). Van Nostrand.

Chicago Style (17th ed.) Citation

Guilford, J. P. Fields of Psychology, Basic and Applied. 2d ed. New York: Van Nostrand, 1950.

MLA (9th ed.) Citation

Guilford, J. P. Fields of Psychology, Basic and Applied. 2d ed. Van Nostrand, 1950.