APA استشهاد

Simader, C. (1972). On Dirichlet's boundary value problems. Springer.

استشهاد بنمط شيكاغو

Simader, C.G. On Dirichlet's Boundary Value Problems. Berlin: Springer, 1972.

MLA استشهاد

Simader, C.G. On Dirichlet's Boundary Value Problems. Springer, 1972.