Sobolev, S. L., Dawson, E., & Broadbent, T. (1989). Partial differential equations of mathematical physics. Dover.
Chicago Style (17th ed.) CitationSobolev, Sergei L'vovich, E.R Dawson, and T.A.A Broadbent. Partial Differential Equations of Mathematical Physics. New York: Dover, 1989.
MLA (9th ed.) CitationSobolev, Sergei L'vovich, et al. Partial Differential Equations of Mathematical Physics. Dover, 1989.
Warning: These citations may not always be 100% accurate.