Preparation for endoscopy

MLA

Ian D. Penman, et al. Preparation for Endoscopy. Jan. 2011. EBSCOhost, https://doi.org/10.1016/b978-0-7020-3128-1.00002-x.

APA

Ian D. Penman, Laurent Palazzo, Bertrand Napoleon, Jean Marc Canard, & J. C. Letard. (2011). Preparation for endoscopy. https://doi.org/10.1016/b978-0-7020-3128-1.00002-x

Chicago

Ian D. Penman, Laurent Palazzo, Bertrand Napoleon, Jean Marc Canard, and J. C. Letard. 2011. “Preparation for Endoscopy,” January. doi:10.1016/b978-0-7020-3128-1.00002-x.