MLA

Georgoulis, Emmanuil H, Armin Iske, and Jeremy Levesley. Approximation Algorithms for Complex Systems. Springer Berlin Heidelberg, 2011.

APA

Georgoulis, E. H, Iske, A., & Levesley, J. (2011). Approximation Algorithms for Complex Systems. Springer Berlin Heidelberg.

Chicago

Georgoulis, Emmanuil H., Armin Iske, and Jeremy Levesley. Approximation Algorithms for Complex Systems. : Springer Berlin Heidelberg, 2011.