TY  - BOOK
AU  - A AYANABA
TI  - BIOLOGICAL NITROGEN FIXATION IN FARMING SYSTEM OF THE TROPICS
U1  - GN589.704133AY1 
PY  - 1977///
CY  - NEW YORK
PB  - JOHN WILEY & SONS, INC.
KW  - BIOLOGICAL NITROGEN FIXATION IN FARMING SYSTEM OF THE TROPICS
N1  - MODERN BOOK HOUSE
ER  -