Não informado. (1957). Canadian Journal of Soil Science. Agricultural Institute of Canada.
Chicagoスタイル(17版)引用形式Não informado. Canadian Journal of Soil Science. Ottawa: Agricultural Institute of Canada, 1957.
MLA(8版)引用形式Não informado. Canadian Journal of Soil Science. Agricultural Institute of Canada, 1957.
警告: この引用は必ずしも正確ではありません.