APA (7th ed.) Citation

Stephens, F. D., & Smith, E. D. (1971). Ano-rectal malformations in children. Year Book Medical Publishers.

Chicago Style (17th ed.) Citation

Stephens, F. Douglas, and E. Durham Smith. Ano-rectal Malformations in Children. Chicago: Year Book Medical Publishers, 1971.

MLA (8th ed.) Citation

Stephens, F. Douglas, and E. Durham Smith. Ano-rectal Malformations in Children. Year Book Medical Publishers, 1971.