APA (7th ed.) Citation

Krouse, J. H., & Christmas, D. A. (1997). Powered endocopic sinus surgery (1. ed.). Williams & Wilkins.

Chicago Style (17th ed.) Citation

Krouse, John H., and Dewey A. Christmas. Powered Endocopic Sinus Surgery. 1. ed. Baltimore [u.a.]: Williams & Wilkins, 1997.

MLA (9th ed.) Citation

Krouse, John H., and Dewey A. Christmas. Powered Endocopic Sinus Surgery. 1. ed. Williams & Wilkins, 1997.

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