Não informado. (1981). Abstracts on hygiene and communicable diseases. Bureau of Hygiene and Tropical Diseases.
Chicagoスタイル(17版)引用形式Não informado. Abstracts on Hygiene and Communicable Diseases. London: Bureau of Hygiene and Tropical Diseases, 1981.
MLA(8版)引用形式Não informado. Abstracts on Hygiene and Communicable Diseases. Bureau of Hygiene and Tropical Diseases, 1981.
警告: この引用は必ずしも正確ではありません.