Não informado. (1952). FAO Plant Protection Bulletin. Food and Agriculture Organization of the United Nations.
Chicago-Zitierstil (17. Ausg.)Não informado. FAO Plant Protection Bulletin. Rome: Food and Agriculture Organization of the United Nations, 1952.
MLA-Zitierstil (8. Ausg.)Não informado. FAO Plant Protection Bulletin. Food and Agriculture Organization of the United Nations, 1952.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.