APA (7th ed.) Citation

HELLMAN, L., & PRITCHARD, J. (1973). Williams obstetricia. Salvat.

Chicago Style (17th ed.) Citation

HELLMAN, Louis, and Jack PRITCHARD. Williams Obstetricia. México: Salvat, 1973.

MLA (9th ed.) Citation

HELLMAN, Louis, and Jack PRITCHARD. Williams Obstetricia. Salvat, 1973.

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