Cita APA

Bers, L., John, F., & Schechter, M. (1964). Partial differential equations. Interscience Publishers.

Citación estilo Chicago

Bers, Lipman, Fritz John, and Martin Schechter. Partial Differential Equations. New York: Interscience Publishers, 1964.

Cita MLA

Bers, Lipman, et al. Partial Differential Equations. Interscience Publishers, 1964.