Bers, L., John, F., & Schechter, M. (1964). Partial differential equations. Interscience Publishers.
Cita Chicago Style (17a ed.)Bers, Lipman, Fritz John, y Martin Schechter. Partial Differential Equations. New York: Interscience Publishers, 1964.
Cita MLA (9a ed.)Bers, Lipman, et al. Partial Differential Equations. Interscience Publishers, 1964.
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