Cita APA (7a ed.)

Hay, R. C. (1929). Sales management fundamentals. Harper & Brothers.

Cita Chicago Style (17a ed.)

Hay, Richard C. Sales Management Fundamentals. New York [etc.]: Harper & Brothers, 1929.

Cita MLA (9a ed.)

Hay, Richard C. Sales Management Fundamentals. Harper & Brothers, 1929.