Cita APA (7th ed.)

Ahlfors, L. V., & Sario, L. (1960). Riemann surfaces. Princeton University.

Cita Chicago (17th ed.)

Ahlfors, Lars V., i Leo Sario. Riemann Surfaces. Princeton: Princeton University, 1960.

Cita MLA (9th ed.)

Ahlfors, Lars V., i Leo Sario. Riemann Surfaces. Princeton University, 1960.