[Ecologo-geographic distribution of Azotobacter in soils in USSR].
D001395:Azotobacter; D001432:Bacteriology; D012987:Soil; D012988:Soil Microbiology; D014586:USSR
D012987:Soil
AZOTOBACTER; SOIL/bacteriology
Ekologo-geograficheskoe rasprostranenie azotobaktera v pochvakh SSSR.