MLA

Petry, Frederick E, et al. Fuzzy Modeling with Spatial Information for Geographic Problems. Springer Berlin Heidelberg, 2005.

APA

Petry, F. E, Cobb, M. A, Petry, F., & Robinson, V. B. (2005). Fuzzy Modeling with Spatial Information for Geographic Problems. Springer Berlin Heidelberg.

Chicago

Petry, Frederick E., Maria A Cobb, Fred Petry, and Vincent B Robinson. Fuzzy Modeling with Spatial Information for Geographic Problems. : Springer Berlin Heidelberg, 2005.