CALLAO, V The use of dyes to distinguish between species of the genus Azotobacter. [electronic resource] - Journal of general microbiology Jun 1960 - 657-61 p. digital Publication Type: Journal Article ISSN: 0022-1287 Standard No.: 10.1099/00221287-22-3-657 doi Subjects--Topical Terms: AzotobacterColoring Agents--pharmacology