Removal of spray residue from pears and apples
Pettey, F.W.
Removal of spray residue from pears and apples - Pretoria 1929 - 1-8 p. - Apples Union of South Africa Department of Agricultre. Bulletin No. 63 .
Removal of spray residue from pears and apples - Pretoria 1929 - 1-8 p. - Apples Union of South Africa Department of Agricultre. Bulletin No. 63 .