TY  - BOOK
AU  - Subba Rao, N.S., ed.
TI  - Biological nitrogen fixation, recent developments
U1  - 581.138.1:574 M8 
PY  - 1988///
CY  - New Delhi
PB  - Oxford & IBH
KW  - Edited by N.S. Subba Rao
KW  - Nitrogen fixation
ER  -