APA (7th ed.) Citation

Eastman, N. J., & Vela Treviño, H. (1960). Obstetricia de williams (3a. ed.). Uthea.

Chicago Style (17th ed.) Citation

Eastman, Nicholson J., and H. Vela Treviño. Obstetricia De Williams. 3a. ed. Mexico: Uthea, 1960.

MLA (9th ed.) Citation

Eastman, Nicholson J., and H. Vela Treviño. Obstetricia De Williams. 3a. ed. Uthea, 1960.