APA (7th ed.) Citation

Gilbarg, D., & Trudinger, N. S. (1977). Elliptic partial differential equations of second order. Springer.

Chicago Style (17th ed.) Citation

Gilbarg, David, and Neil S. Trudinger. Elliptic Partial Differential Equations of Second Order. Berlin: Springer, 1977.

MLA (8th ed.) Citation

Gilbarg, David, and Neil S. Trudinger. Elliptic Partial Differential Equations of Second Order. Springer, 1977.