Cita APA (7th ed.)

Heyel, C. (1962). Management for modern supervisors. American Management Association.

Cita Chicago (17th ed.)

Heyel, Carl. Management for Modern Supervisors. New York: American Management Association, 1962.

Cita MLA (9th ed.)

Heyel, Carl. Management for Modern Supervisors. American Management Association, 1962.