APA-referens (7:e uppl.)

Singh, M., Sharma, A., Gardiner, A., & Duthie, G. S. (2005). Early results of a rotational flap to treat chronic anal fissures. International Journal of Colorectal Disease, 20(4), 339-342. https://doi.org/10.1007/s00384-004-0663-8

Chicago-referens (17:e uppl.)

Singh, Meheshinder, Abhiram Sharma, Angela Gardiner, och Graeme S. Duthie. "Early Results of a Rotational Flap to Treat Chronic Anal Fissures." International Journal of Colorectal Disease 20, no. 4 (2005): 339-342. https://doi.org/10.1007/s00384-004-0663-8.

MLA-referens (9:e uppl.)

Singh, Meheshinder, et al. "Early Results of a Rotational Flap to Treat Chronic Anal Fissures." International Journal of Colorectal Disease, vol. 20, no. 4, 2005, pp. 339-342, https://doi.org/10.1007/s00384-004-0663-8.