MLA

Roos, Hans-Görg, Martin Stynes, and Lutz Tobiska. Robust Numerical Methods for Singularly Perturbed Differential Equations. Springer Berlin Heidelberg, 2008.

APA

Roos, H., Stynes, M., & Tobiska, L. (2008). Robust Numerical Methods for Singularly Perturbed Differential Equations. Springer Berlin Heidelberg.

Chicago

Roos, Hans-Görg, Hans-Görg Roos, Martin Stynes, and Lutz Tobiska. Robust Numerical Methods for Singularly Perturbed Differential Equations. : Springer Berlin Heidelberg, 2008.