TY  - BOOK
AU  - F J BERGERSEN
TI  - METHODS FOR EVALUATING BIOLOGICAL NITROGEN FIXATION
SN  - 0 471 27759 2
U1  - R 574.133 
PY  - 1900///
CY  - NEWYORK
PB  - JOHN WILEY & SONS
KW  - METHODS FOR EVALUATING BIOLOGICAL NITROGEN FIXATION
N1  - MODERN BOOK HOUSE JABALPUR
ER  -