Cita APA

Keefer, C. S. n. 1., & Keefer, C. S. n. 1. (1949). The Uses of penicillin and streptomycin. Lawrence: University of Kansas Press.

Citación estilo Chicago

Keefer, Chester Scott n. 1897, y Chester Scott n. 1897 Keefer. The Uses of Penicillin and Streptomycin. Lawrence: University of Kansas Press, 1949.

Cita MLA

Keefer, Chester Scott n. 1897, y Chester Scott n. 1897 Keefer. The Uses of Penicillin and Streptomycin. Lawrence: University of Kansas Press, 1949.