Não informado. (1976). Agricultural engineering abstracts. Commonwealth Agricultural Bureau.
Chicagoスタイル(17版)引用形式Não informado. Agricultural Engineering Abstracts. Farnham Royal, Inglaterra: Commonwealth Agricultural Bureau, 1976.
MLA(8版)引用形式Não informado. Agricultural Engineering Abstracts. Commonwealth Agricultural Bureau, 1976.
警告: この引用は必ずしも正確ではありません.