Não informado. (1989). Small business economics. Kluwer Academic Publishers.
Chicagoスタイル(17版)引用形式Não informado. Small Business Economics. Dordrecht, Holanda: Kluwer Academic Publishers, 1989.
MLA(8版)引用形式Não informado. Small Business Economics. Kluwer Academic Publishers, 1989.
警告: この引用は必ずしも正確ではありません.