Freeland, Peter. Micro-organisms in Action: Investigations/ Peter Freeland. - London : Hodder and Stoughton, c.1991. - 76 p. (spiral) : ill. ; 30 cm. - Focus on Biology. . ISBN: 0340539224 Subjects--Topical Terms: Microbiology--Laboratory manual.Microorganisms--Experiments. Dewey Class. No.: 579.078 FRE