Não informado. (1920). Agricultural Engineering. American Society of Agricultural Engineers.
Chicagoスタイル(17版)引用形式Não informado. Agricultural Engineering. St. Joseph, Mich: American Society of Agricultural Engineers, 1920.
MLA(8版)引用形式Não informado. Agricultural Engineering. American Society of Agricultural Engineers, 1920.
警告: この引用は必ずしも正確ではありません.