Não informado. (1954). Agricultural Engineers Yearbook. American Society of Agricultural Engineers.
Chicagoスタイル(17版)引用形式Não informado. Agricultural Engineers Yearbook. St. Joseph, Mich: American Society of Agricultural Engineers, 1954.
MLA(8版)引用形式Não informado. Agricultural Engineers Yearbook. American Society of Agricultural Engineers, 1954.
警告: この引用は必ずしも正確ではありません.