APA (7e ed.) Bronvermelding

Didactic Systems. (1977). Management in the fire service. National Fire Protection.

Chicago (17e ed.) Bronvermelding

Didactic Systems. Management in the Fire Service. National Fire Protection, 1977.

MLA (9e ed.) Bronvermelding

Didactic Systems. Management in the Fire Service. National Fire Protection, 1977.

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