MLA

Sultan, Abdul H; Thakar, Ranee; Fenner, Dee E, et al. Perineal and Anal Sphincter Trauma. Springer London, 2007.

APA

Sultan, D. E, Fenner, D. E, Sultan, A. H, & Thakar, R. (2007). Perineal and Anal Sphincter Trauma. Springer London.

Chicago

Sultan, Abdul H; Thakar, Ranee; Fenner, Dee E., Dee E Fenner, Abdul H Sultan, and Ranee Thakar. Perineal and Anal Sphincter Trauma. : Springer London, 2007.