APA (7th ed.) Citation

Pritchard, J. A., & MacDonald, P. C. (1979). Williams Obstetricia (2a. edición.). Salvat.

Chicago Style (17th ed.) Citation

Pritchard, Jack A., and Paul C. MacDonald. Williams Obstetricia. 2a. edición. Bogotá: Salvat, 1979.

MLA (9th ed.) Citation

Pritchard, Jack A., and Paul C. MacDonald. Williams Obstetricia. 2a. edición. Salvat, 1979.

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