Não informado. (1947). Business Education Forum. National Business Education Association.
Chicagoスタイル(17版)引用形式Não informado. Business Education Forum. Washington: National Business Education Association, 1947.
MLA(8版)引用形式Não informado. Business Education Forum. National Business Education Association, 1947.
警告: この引用は必ずしも正確ではありません.