APA (7th ed.) Citation

Ory, J. C., & Poggio, J. P. (1975). Measurement of achievement motivation. [publisher not identified].

Chicago Style (17th ed.) Citation

Ory, John C., and John P. Poggio. Measurement of Achievement Motivation. [Place of publication not identified]: [publisher not identified], 1975.

MLA (9th ed.) Citation

Ory, John C., and John P. Poggio. Measurement of Achievement Motivation. [publisher not identified], 1975.