TY  - BOOK
AU  - "Hadry, R.W.F. & Gibson, A.H."
TI  - A treatise on dinitrogen fixation section 4: Agronomy & ecology
U1  - 631.461.5(021)   L7 
PY  - 0000///New York
CY  - 1976
PB  - A Wiley Interscience Publication
ER  -