Gaya APA

WILLIAMS, M, V. (2007). COMPREHENSIVE HOSPITAL MEDICINE : AN EVIDENCE-BASED APPROACH (Ed. 1). USA: Saunders Elsevier.

Gaya MLA

WILLIAMS, MARK, V.. "COMPREHENSIVE HOSPITAL MEDICINE : AN EVIDENCE-BASED APPROACH". Ed. 1 USA: Saunders Elsevier, 2007. Text.