Cita APA (7th ed.)

Ohlsen, M. M. (1955). Guidance: An introduction. Harcourt, Brace and Company.

Cita Chicago (17th ed.)

Ohlsen, Merle M. Guidance: An Introduction. Nueva York: Harcourt, Brace and Company, 1955.

Cita MLA (9th ed.)

Ohlsen, Merle M. Guidance: An Introduction. Harcourt, Brace and Company, 1955.