TY  - RPRT
TI  - Ecological studies on Azotobacter in Egyptian soils.
AU  - N A Hegazi
PY  - 1979
DO  - 10.1016/s0323-6056(79)80072-5
UR  - https://pubmed.ncbi.nlm.nih.gov/44932/
ID  - 44932
ER  -