Não informado. (1963). Explorations in Entrepreneurial History. Earlham College.
Chicagoスタイル(17版)引用形式Não informado. Explorations in Entrepreneurial History. Richmond, Ind: Earlham College, 1963.
MLA(8版)引用形式Não informado. Explorations in Entrepreneurial History. Earlham College, 1963.
警告: この引用は必ずしも正確ではありません.