Não informado. (1981). Diesel Progress North American. Diesel & Gas Turbine Publications.
Chicagoスタイル(17版)引用形式Não informado. Diesel Progress North American. Brookfield, Wis: Diesel & Gas Turbine Publications, 1981.
MLA(8版)引用形式Não informado. Diesel Progress North American. Diesel & Gas Turbine Publications, 1981.
警告: この引用は必ずしも正確ではありません.