Gilbarg, D., & Trudinger, N. S. (1977). Elliptic partial differential equations of second order. Springer.
Chicago Style (17th ed.) CitationGilbarg, David, and Neil S. Trudinger. Elliptic Partial Differential Equations of Second Order. Berlin: Springer, 1977.
MLA (8th ed.) CitationGilbarg, David, and Neil S. Trudinger. Elliptic Partial Differential Equations of Second Order. Springer, 1977.
Warning: These citations may not always be 100% accurate.