Não informado. (1947). Business Education Forum. National Business Education Association.
Chicago-Zitierstil (17. Ausg.)Não informado. Business Education Forum. Washington: National Business Education Association, 1947.
MLA-Zitierstil (8. Ausg.)Não informado. Business Education Forum. National Business Education Association, 1947.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.