Gaya APA
IVENS, G, W.
(1971).
EAST AFRICAN WEEDS AND THEIR CONTROL
.
United States of America:
OXFORD UNIVERSITY PRESS.
Gaya MLA
IVENS, G., W..
"EAST AFRICAN WEEDS AND THEIR CONTROL".
United States of America:
OXFORD UNIVERSITY PRESS,
1971.
Text.