MLA

Mordeson, John, et al. Fuzzy Group Theory. Springer Berlin / Heidelberg, 2005.

APA

Mordeson, J., Bhutani, K., Rosenfeld, A., Mordeson, J. N, Rosenfeld, A., & Bhutani, K. R. (2005). Fuzzy Group Theory. Springer Berlin / Heidelberg.

Chicago

Mordeson, John, Kiran Bhutani, Azriel Rosenfeld, John N Mordeson, A Rosenfeld, and Kiran R Bhutani. Fuzzy Group Theory. : Springer Berlin / Heidelberg, 2005.