Gaya APA

Bellamy, M, K, C, M. (2007). Ebook Gastrointestinal and Colorectal Anesthesia (CET. 2007). USA: Informa Healthcare USA, Inc..

Gaya MLA

Bellamy, M., Kumar, Chandra,, Mark. "Ebook Gastrointestinal and Colorectal Anesthesia". CET. 2007 USA: Informa Healthcare USA, Inc., 2007. Text.