Não informado. (1919). Plant Disease Reporter. Agricultural Research Service.
Chicagoスタイル(17版)引用形式Não informado. Plant Disease Reporter. Washington: Agricultural Research Service, 1919.
MLA(8版)引用形式Não informado. Plant Disease Reporter. Agricultural Research Service, 1919.
警告: この引用は必ずしも正確ではありません.