Cita APA

Crow, L. D., & Crow, A. (1960). An introduction to guidance; basic principles and practices (2nd edition.). American Book Co.

Citación estilo Chicago

Crow, Lester D., and Alice Crow. An Introduction to Guidance; Basic Principles and Practices. 2nd edition. New York: American Book Co, 1960.

Cita MLA

Crow, Lester D., and Alice Crow. An Introduction to Guidance; Basic Principles and Practices. 2nd edition. American Book Co, 1960.