Cita APA (7a ed.)

Palma, E., Perez Fontana, M., & Ithurralde, A. (2020). Contribution to the technique of treating extra-sphincter complete anal fistulas.

Cita Chicago Style (17a ed.)

Palma, Eduardo, Medulio Perez Fontana, y Adalberto Ithurralde. Contribution to the Technique of Treating Extra-sphincter Complete Anal Fistulas. 2020.

Cita MLA (9a ed.)

Palma, Eduardo, et al. Contribution to the Technique of Treating Extra-sphincter Complete Anal Fistulas. 2020.