Toxicity of contact insecticides to seed infesting insects series No. 2 : Test w
Joubert, P.C.
Toxicity of contact insecticides to seed infesting insects series No. 2 : Test w - Pretoria 1964 - 20 p. - No. 17; South Africa Departmen .
Toxicity of contact insecticides to seed infesting insects series No. 2 : Test w - Pretoria 1964 - 20 p. - No. 17; South Africa Departmen .