101
Published in 1992
Repository
102
Published in 1974
Repository
103
105
106
Published in 1987
Repository
107
108
Published in 2011
Repository
109
110
Published in 1973
Repository
111
Published in 1995
Repository
112
Published in 1976
Repository
114
115
116
Published in 1982
Repository
117
Published in 1995
Repository
118
Guía técnica para el control químico de malezas en los principales cultivos de la Sierra ecuatoriana
Published in 1993
Repository
119
120
Published in 1993
Repository