MLA

Motreanu, Dumitru, Viorica Venera Motreanu, and Nikolaos Papageorgiou. Topological and Variational Methods with Applications to Nonlinear Boundary Value Problems. Springer New York, 2014.

APA

Motreanu, D., Motreanu, V. Venera, & Papageorgiou, N. (2014). Topological and Variational Methods with Applications to Nonlinear Boundary Value Problems. Springer New York.

Chicago

Motreanu, Dumitru, Viorica Venera Motreanu, Nikolaos Papageorgiou, and Nikolaos Papageorgiou. Topological and Variational Methods with Applications to Nonlinear Boundary Value Problems. : Springer New York, 2014.