Nutman, P S
Symbotic nitrogen fixation in plants - London, Cambridge University Press 1976 - 584 - 7 International Biological Programme .
0-521-20645-6
Taxonomy/ legume inoculunts
581.133 5 NUT
100
Symbotic nitrogen fixation in plants - London, Cambridge University Press 1976 - 584 - 7 International Biological Programme .
0-521-20645-6
Taxonomy/ legume inoculunts
581.133 5 NUT
100