Παραπομπή σε μορφή APA (7η εκδ.)

Gilbarg, D., & Trudinger, N. S. (1998). Elliptic partial differential equations of second order (2nd ed., rev. 3rd printing.). Springer.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Gilbarg, David, και Neil S. Trudinger. Elliptic Partial Differential Equations of Second Order. 2nd ed., rev. 3rd printing. Berlin: Springer, 1998.

Παραπομπή σε μορφή MLA (8th εκδ.)

Gilbarg, David, και Neil S. Trudinger. Elliptic Partial Differential Equations of Second Order. 2nd ed., rev. 3rd printing. Springer, 1998.