APA način citiranja

Rosenfeld, G., Freeman, H. J., Brown, M., & Steinbrecher, U. P. (2012). Severe and extensive enteritis following colectomy for ulcerative colitis. Pulsus Group Inc.

Čikaški stil citiranja

Rosenfeld, Greg, Hugh J. Freeman, Maura Brown, i Urs P. Steinbrecher. Severe and Extensive Enteritis Following Colectomy for Ulcerative Colitis. Pulsus Group Inc, 2012.

MLA način citiranja

Rosenfeld, Greg, Hugh J. Freeman, Maura Brown, i Urs P. Steinbrecher. Severe and Extensive Enteritis Following Colectomy for Ulcerative Colitis. Pulsus Group Inc, 2012.