Cita APA (7th ed.)

DuBrin, A. J. (1990). Essentials of management (2nd ed.). South-Western.

Cita Chicago (17th ed.)

DuBrin, Andrew J. Essentials of Management. 2nd ed. Cincinnati: South-Western, 1990.

Cita MLA (9th ed.)

DuBrin, Andrew J. Essentials of Management. 2nd ed. South-Western, 1990.