Crow, L. D., & Crow, A. (1962). Readings in guidance: Principles, practices, organization, administration. McKay.
Cita Chicago (17th ed.)Crow, Lester D., i Alice Crow. Readings in Guidance: Principles, Practices, Organization, Administration. New York, New York: McKay, 1962.
Cita MLA (9th ed.)Crow, Lester D., i Alice Crow. Readings in Guidance: Principles, Practices, Organization, Administration. McKay, 1962.
Atenció: Aquestes cites poden no estar 100% correctes.