National Library of Medicine. (1939). Index to Dental Literature. American Dental Association.
Citação do estilo Chicago (17ª ed.)National Library of Medicine. Index to Dental Literature. Chicago, Ill: American Dental Association, 1939.
Citação MLA (8ª ed.)National Library of Medicine. Index to Dental Literature. American Dental Association, 1939.
警告：这些引文格式不一定是100％准确.