Não informado. (1960). Technical communication. Department of Agriculture and Water Supply.
Chicagoスタイル(17版)引用形式Não informado. Technical Communication. Pretoria, Africa do Sul: Department of Agriculture and Water Supply, 1960.
MLA(8版)引用形式Não informado. Technical Communication. Department of Agriculture and Water Supply, 1960.
警告: この引用は必ずしも正確ではありません.