Cita APA

Eastman, N., & Hellman, L. M. (1961). Williams Obstetrics.

Citación estilo Chicago

Eastman, Nicholson, and Louis M. Hellman. Williams Obstetrics. 1961.

Cita MLA

Eastman, Nicholson, and Louis M. Hellman. Williams Obstetrics. 1961.

Warning: These citations may not always be 100% accurate.