Knox, R. L. (1969). Workable competition in the rubber tire industry. Univ. Microfilms.
Chicagoスタイル(17版)引用形式Knox, Robert Lee. Workable Competition in the Rubber Tire Industry. Ann Arbor, Mich.: Univ. Microfilms, 1969.
MLA(8版)引用形式Knox, Robert Lee. Workable Competition in the Rubber Tire Industry. Univ. Microfilms, 1969.
警告: この引用は必ずしも正確ではありません.