Παραπομπή APA

Cowan, J. (1977). The Self Reliant Manager. Amacom.

Παραπομπή Chicago Style

Cowan, John. The Self Reliant Manager. New York: Amacom, 1977.

Παραπομπή MLA

Cowan, John. The Self Reliant Manager. Amacom, 1977.