Não informado. (1971). Technical reports. University of Michigan.
Chicagoスタイル(17版)引用形式Não informado. Technical Reports. Ann Arbor, Mich: University of Michigan, 1971.
MLA(8版)引用形式Não informado. Technical Reports. University of Michigan, 1971.
警告: この引用は必ずしも正確ではありません.