Management of agropastoral systems in a semiarid region.
Ungar, E.D.
Management of agropastoral systems in a semiarid region. E.D Ungar - Pudoc Wageningen 1990
9022009467
S 494.5 .A47U64
Management of agropastoral systems in a semiarid region. E.D Ungar - Pudoc Wageningen 1990
9022009467
S 494.5 .A47U64