Chemical control of water weeds in the Gezira area of the Sudan
Jones, K.W., Andrews, F.W.
Chemical control of water weeds in the Gezira area of the Sudan - Khartoum 1952 - 120-128 p. - No. 30; Sudan Government, Min .
Chemical control of water weeds in the Gezira area of the Sudan - Khartoum 1952 - 120-128 p. - No. 30; Sudan Government, Min .