Cita APA (7a ed.)
Hackney, H. (1973). Counseling strategies and objectives. Prentice-Hall.
Cita Chicago Style (17a ed.)
Hackney, Harold. Counseling Strategies and Objectives. New Jersey: Prentice-Hall, 1973.
Cita MLA (9a ed.)
Hackney, Harold. Counseling Strategies and Objectives. Prentice-Hall, 1973.
Precaución: Estas citas no son 100% exactas.