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Informe anual de investigación 1990
(Zamorano: Escuela Agrícola Panamericana, 2014, 2014)
Fertilizando sin fertilizantes
(Universidad Veracruzana, 2009)
Biological nitrogen fixation in forest ecosystems: foundations and applications
(Martinus Nijhoff Dr. W.Junk Publishers, 2018)
Leucaena research in the asian-pacific region. Proceeding of a workshop held in Singapore, 23-26 Nov. 1982
(IDRC : Nitrogen Fixing Tree Association, 2018)