Abu-Isba, Mustafa A.2015-12-312015-12-311979http://hdl.handle.net/2097/26997Call number: LD2668 .T4 1979 A278Escherichia coli.Bacteriology--Cultures and culture media.Enterotoxins.Comparison of Escherichia coli virulence factors with colony morphology on various mediaTextMasters theses