Varnam, A. H. Environmental microbiology / Alan H. Varnam ; Malcolm G. Evans, photographer - London : Manson, c2000 - 160 p. : ill. (some col.) ; 27 cm. Bibliography & index. ISBN: 1874545782 Subjects--Topical Terms: Microbial ecology Dewey Class. No.: 579.17 / V287E 2000