Smirnov, M. M. (1966). Second-order partial differential equations. P. Noordhoff.
Chicago Style (17th ed.) CitationSmirnov, M. M. Second-order Partial Differential Equations. Groningen: P. Noordhoff, 1966.
MLA (8th ed.) CitationSmirnov, M. M. Second-order Partial Differential Equations. P. Noordhoff, 1966.
Warning: These citations may not always be 100% accurate.