Cita APA (7a ed.)

Hill, G. E. (1974). Management and improvement of guidance (2nd ed.). Prentice-Hall.

Cita Chicago Style (17a ed.)

Hill, George E. Management and Improvement of Guidance. 2nd ed. Englewood Cliffs, N. J: Prentice-Hall, 1974.

Cita MLA (9a ed.)

Hill, George E. Management and Improvement of Guidance. 2nd ed. Prentice-Hall, 1974.

Precaución: Estas citas no son 100% exactas.