Cita APA (7th ed.)

Smith, G. E. (1951). Principles and practices of the guidance program: A basic text. The MacMillan Company.

Cita Chicago (17th ed.)

Smith, Glenn E. Principles and Practices of the Guidance Program: A Basic Text. Nueva York: The MacMillan Company, 1951.

Cita MLA (9th ed.)

Smith, Glenn E. Principles and Practices of the Guidance Program: A Basic Text. The MacMillan Company, 1951.