Não informado. (1960). Canadian plant disease survey. Plant Research Institute, Department of Agriculture.
Chicagoスタイル(17版)引用形式Não informado. Canadian Plant Disease Survey. Ottawa: Plant Research Institute, Department of Agriculture, 1960.
MLA(8版)引用形式Não informado. Canadian Plant Disease Survey. Plant Research Institute, Department of Agriculture, 1960.
警告: この引用は必ずしも正確ではありません.