TY  - BOOK
AU  - BURNS,R.C.,HARDY,R.W.F
TI  - NITROGEN FIXATION IN BACTERIA AND HIGHER PLANTS
U1  - 572.454 BUR 
PY  - 1975///
CY  - NEW YORK
PB  - SRPINGER-VERLAG BERLIN -HEIDELBERG
KW  - NITROGEN FIXATION
ER  -