APA (7th ed.) Citation

Bers, L., Schechter, M., & John, F. (1966). Partial differential equations. American Mathematical Society.

Chicago Style (17th ed.) Citation

Bers, Lipman, Martin Schechter, and Fritz John. Partial Differential Equations. Providence, RI: American Mathematical Society, 1966.

MLA (8th ed.) Citation

Bers, Lipman, et al. Partial Differential Equations. American Mathematical Society, 1966.