APA (7th ed.) Citation

(1989). Principles and practice of sleep medicine. Saunders.

Chicago Style (17th ed.) Citation

Principles and Practice of Sleep Medicine. Philadelphia [u.a.]: Saunders, 1989.

MLA (9th ed.) Citation

Principles and Practice of Sleep Medicine. Saunders, 1989.

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