APA (7e ed.) Bronvermelding

Não informado. (1987). National Business Education Yearbook. National Business Education Association.

Chicago (17e ed.) Bronvermelding

Não informado. National Business Education Yearbook. Reston, Va: National Business Education Association, 1987.

MLA (8e ed.) Bronvermelding

Não informado. National Business Education Yearbook. National Business Education Association, 1987.

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