"New horizons in nitrogen fixation: proceedings of the 9th International Congresses on Nitrogen Fixation, Cancun, Mexico, December 6-12, 1992"
International Congresses on Nitrogen Fixation (9th
"New horizons in nitrogen fixation: proceedings of the 9th International Congresses on Nitrogen Fixation, Cancun, Mexico, December 6-12, 1992" - Kluwar Academic Publishers 1993
589.950
"New horizons in nitrogen fixation: proceedings of the 9th International Congresses on Nitrogen Fixation, Cancun, Mexico, December 6-12, 1992" - Kluwar Academic Publishers 1993
589.950