Cita APA (7a ed.)

Tchekmedyan, V., Belloso, R., Méndez, H., Valls, A., & Romano, D. (1978). Non Surgical Extractfon of Residual Gallsitones.

Cita Chicago Style (17a ed.)

Tchekmedyan, Vartan, Rogelio Belloso, Hugo Méndez, Alberto Valls, y Dante Romano. Non Surgical Extractfon of Residual Gallsitones. 1978.

Cita MLA (9a ed.)

Tchekmedyan, Vartan, et al. Non Surgical Extractfon of Residual Gallsitones. 1978.