International Horticultural Congress The Hague. (1956). Report. H. Veenman.
Chicagoスタイル(17版)引用形式International Horticultural Congress The Hague. Report. Wageningen, Netherlands: H. Veenman, 1956.
MLA(8版)引用形式International Horticultural Congress The Hague. Report. H. Veenman, 1956.
警告: この引用は必ずしも正確ではありません.