Não informado. (1949). Engineering report. Iowa Engineering Experiment Station.
Chicagoスタイル(17版)引用形式Não informado. Engineering Report. Ames, Iowa: Iowa Engineering Experiment Station, 1949.
MLA(8版)引用形式Não informado. Engineering Report. Iowa Engineering Experiment Station, 1949.
警告: この引用は必ずしも正確ではありません.