Physiological limitations and the genetic improvement of symbiotic nitrogen fixation : proceedings of an International Conference on the Physiological Limitations and the Genetic Improvement of Symbiotic Nitrogen Fixation, Cork, Ireland, September 1-3, 1987
edited by F. O'Gara, S. Manian and J.J. Drevon
(Advances in agricultural biotechnology, 23)
Kluwer Academic Publishers for the Commission of the European Communities, c1988