Cita APA

Petrovskii, I. G., & Petrovskii, I. G. (1964). Lectures on partial differential equations. New York, New York: Intercience.

Citación estilo Chicago

Petrovskii, Ivan Georgievich, y Ivan Georgievich Petrovskii. Lectures On Partial Differential Equations. New York, New York: Intercience, 1964.

Cita MLA

Petrovskii, Ivan Georgievich, y Ivan Georgievich Petrovskii. Lectures On Partial Differential Equations. New York, New York: Intercience, 1964.