Cita APA (7a ed.)

Sierra, R., Victorica, A., Suárez, H., & Pifaretti, N. (2020). Pneumectomy and lobectomy in chronic lung abscess, based on 14 operated cases.

Cita Chicago Style (17a ed.)

Sierra, Ramón, Alejandro Victorica, Hamlet Suárez, y N. Pifaretti. Pneumectomy and Lobectomy in Chronic Lung Abscess, Based on 14 Operated Cases. 2020.

Cita MLA (9a ed.)

Sierra, Ramón, et al. Pneumectomy and Lobectomy in Chronic Lung Abscess, Based on 14 Operated Cases. 2020.