MLA

Serna, Maria, et al. Approximation, Randomization, and Combinatorial Optimization. Algorithms and Techniques. Springer Berlin Heidelberg, 2010.

APA

Serna, M., Jansen, K., Kanade, T., Rolim, J., & Shaltiel, R. (2010). Approximation, Randomization, and Combinatorial Optimization. Algorithms and Techniques. Springer Berlin Heidelberg.

Chicago

Serna, Maria, Klaus Jansen, Takeo Kanade, José Rolim, and Ronen Shaltiel. Approximation, Randomization, and Combinatorial Optimization. Algorithms and Techniques. : Springer Berlin Heidelberg, 2010.