Bitter=pit of the apple
Evans, I.B.Pole
Bitter=pit of the apple - Pretoria 1909 - 1-18 p. - Apple Transvaal Department of Agriculture. Technical Bulletin No. 1 .
Bitter=pit of the apple - Pretoria 1909 - 1-18 p. - Apple Transvaal Department of Agriculture. Technical Bulletin No. 1 .