1. Bergey's manual of systematic bacteriology
Bergey's manual of systematic bacteriology. Volume 2, The proteobacteria. Part A, Introductory essays / Don J. Brenner, Noel R. Krieg, James T. Staley, editors, volume 2 ; George M. Garrity, editor-in-chief . New York : Springer, 2005. xxvi, 304 s.