TY  - BOOK
AU  - Muller Achim Ed.
AU  -  Newton William E Ed.
ED  - International conference on nitrogen fixation (1981 : Zif)
TI  - Proceeding on nitrogen fixation: chemical-biochemical-genetic interface
U1  - J:241p1,N81, M3 
PY  - 1983///
CY  - New York    
PB  -  Plenum Press       
KW  -  Soil fertility
KW  - Agriculture
ER  -