OPEN University of Sri Lanka Coomarasway, Uma Principles of microbiology / [by] Uma Coomaraswamy - Rev.ed. - Nugegoda The Open University of Sri Lanka 1997 - 57 p. Partial contents; vol.5-Control of microorganisms. ISBN: 9552306280 Subjects--Topical Terms: Microbiology Dewey Class. No.: 579 / OPE