Agricultural chemicals
Thomson, W.T.
Agricultural chemicals 1979-80 by W.T. Thomson - Fresno Thomson Publication 1979 - 234 p.
Book 1 : Insecticides, acaricides and ovicides
Insecticides
Agricultural Chemicals
632.951 / T 478 A
Agricultural chemicals 1979-80 by W.T. Thomson - Fresno Thomson Publication 1979 - 234 p.
Book 1 : Insecticides, acaricides and ovicides
Insecticides
Agricultural Chemicals
632.951 / T 478 A