East African weeds and their control /
Ivens, G. W.
East African weeds and their control / by G. W. Ivens - Oxford : Oxford University, 1967 - xiv, 250 p. : ill. ; 21 cm.
0195720172
Weeds--Control--Africa, East
Weeds--Africa, East
AF 632.5809676
East African weeds and their control / by G. W. Ivens - Oxford : Oxford University, 1967 - xiv, 250 p. : ill. ; 21 cm.
0195720172
Weeds--Control--Africa, East
Weeds--Africa, East
AF 632.5809676