Cita APA (7a ed.)

SpringerLink (Online service), Sultan, A. H., Thakar, R., & Fenner, D. E. (2007). Perineal and Anal Sphincter Trauma: Diagnosis and Clinical Management (1st ed. 2007.). Springer London : Imprint: Springer.

Cita Chicago Style (17a ed.)

SpringerLink (Online service), Abdul H. Sultan, Ranee Thakar, y Dee E. Fenner. Perineal and Anal Sphincter Trauma: Diagnosis and Clinical Management. 1st ed. 2007. London: Springer London : Imprint: Springer, 2007.

Cita MLA (8a ed.)

SpringerLink (Online service), et al. Perineal and Anal Sphincter Trauma: Diagnosis and Clinical Management. 1st ed. 2007. Springer London : Imprint: Springer, 2007.