APA citiranje

Somford, M. P., & Nuytinck, H. K. S. (2009). Gallstone ileus with air in the gallbladder. BMJ Publishing Group.

Citação norma Chicago

Somford, Matthijs Paul, and Hans K S. Nuytinck. Gallstone Ileus With Air in the Gallbladder. BMJ Publishing Group, 2009.

MLA citiranje

Somford, Matthijs Paul, and Hans K S. Nuytinck. Gallstone Ileus With Air in the Gallbladder. BMJ Publishing Group, 2009.