Gilbarg, D., & Trudinger, N. S. (1983). 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, 1983.
MLA (9th ed.) CitationGilbarg, David, and Neil S. Trudinger. Elliptic Partial Differential Equations of Second Order. Springer, 1983.