Gaya APA

Pillsbury, H, C., Goldsmith, M, M. (1990). Operative Challenges in Otolaryngology Head and Neck Surgery . United States of America: Mosby Company.

Gaya MLA

Pillsbury, Harold, C.., Goldsmith, Manning, M.. "Operative Challenges in Otolaryngology Head and Neck Surgery". United States of America: Mosby Company, 1990. Text.