APA Style

Wilcox, C, M. et al (2012). Atlas of clinical gastrointestinal endoscopy (3rd ed.). Philadelphia, PA :: Elsevier Saunders,.

MLA Style

Wilcox, C., Mel.. et al. "Atlas of clinical gastrointestinal endoscopy". 3rd ed. Philadelphia, PA :: Elsevier Saunders,, 2012. Text.