Gaya APA

Saunders, P, B, C, C, B, W, R, H, H, B, P. (2008). Practical gastrointestinal endoscopy - the fundamental . : Blackwell Wiley.

Gaya MLA

Saunders, Peter, B., Cotton,, Christopher, B., Williams,, Robert, H., Hawes,, Brian, P.. "Practical gastrointestinal endoscopy - the fundamental". : Blackwell Wiley, 2008. Text.