MLA

Wen, Peng, et al. Rough Sets and Knowledge Technology. Springer Berlin Heidelberg, 2009.

APA

Wen, P., Kanade, T., Li, Y., Polkowski, L., Tsumoto, S., Wang, G., Yao, Y., & Yao, Y. Y. (2009). Rough Sets and Knowledge Technology. Springer Berlin Heidelberg.

Chicago

Wen, Peng, Takeo Kanade, Yuefeng Li, Lech Polkowski, Shusaku Tsumoto, Guoyin Wang, Yiyu Yao, and Yiyu Y Yao. Rough Sets and Knowledge Technology. : Springer Berlin Heidelberg, 2009.