Haku
Viitteet 1-2 / 2
Resistance of insects and mites to pesticides in Finland
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1985)
Studies on the host plant relationships of Aphis idaei v.d. Goot and Amphorophora rubi (Kalt.) (Hom. Aphididae)
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1967)