MLA

Díaz, Josep, et al. Approximation, Randomization, and Combinatorial Optimization. Algorithms and Techniques. Springer Berlin Heidelberg, 2006.

APA

Díaz, J., Daiaz, J., Jansen, K., Kanade, T., Rolim, J. D. P, & Zwick, U. (2006). Approximation, Randomization, and Combinatorial Optimization. Algorithms and Techniques. Springer Berlin Heidelberg.

Chicago

Díaz, Josep, Josep Daiaz, Klaus Jansen, Takeo Kanade, José D. P Rolim, and Uri Zwick. Approximation, Randomization, and Combinatorial Optimization. Algorithms and Techniques. : Springer Berlin Heidelberg, 2006.