TY  - BOOK
AU  - Quispel,A.
TI  - The biology of nitrogen fixation
SN  - 0444106308 :
U1  - 574.19245 
PY  - 1974///
CY  - Amsterdam
PB  - North-Holland Pub.
KW  - Nitrogen
KW  - Fixation
N1  - Includes index
ER  -