International Symposium on Nitrogen Fixation (5th 1983 Noordwijkerhout, Netherlands)
W. G. Murrell
California. Dept. of Water Resources.
Rama Nagina Singh
Advisory Group Meeting on the Potential Use of Isotopes in the Study of Biological Dinitrogen Fixation Vienna 1977.
Leonard Beevers
Unknown Author
FAO/IAEA Technical Expert Meeting on Increasing the Use of Biological Nitrogen Fixation in Agriculture (2001 Rome, Italy)
Sidgwick, Nevil Vincent
Werner Klipp
T. B. Spruill
Russell T. Graham
R. Benz
United States. Congress. House. Committee on Agriculture
Ahmad, N.
Dirk Weihrauch
J. R. Freney
Subbarao
Nevil Vincent Sidgwick
Manuel Losada Villasante