Style de citation APA (7e éd.)

Norris, G. W., & Norris, W. F. (1886). The early history of medicine in Philadelphia. By George W. Norris. [Collins Printing House].

Style de citation Chicago (17e éd.)

Norris, George W., et William Fisher Norris. The Early History of Medicine in Philadelphia. By George W. Norris. Philadelphia: [Collins Printing House], 1886.

Style de citation MLA (8e éd.)

Norris, George W., et William Fisher Norris. The Early History of Medicine in Philadelphia. By George W. Norris. [Collins Printing House], 1886.