APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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

Let op: Deze citaties zijn niet altijd 100% accuraat.