TY  - GEN
AU  - Ahmed,M.H.
TI  - Studies on induced variation in Nostoc
KW  - Nodoc
KW  - Antibiotic
KW  - Nitrogen fixation
KW  - Penicillin
KW  - Induced mutation
N1  - Penicillin; Induced mutation; IARI, Div
ER  -