Potato aphids
Verma, K.D.
Potato aphids K.D. Verma and edited by G.S.Shekhawat - Shimla Central Potato Research Institute - 24p.; 25cm. - (Technical bulletin; no. 26) .
635.212 7 C333P
Potato aphids K.D. Verma and edited by G.S.Shekhawat - Shimla Central Potato Research Institute - 24p.; 25cm. - (Technical bulletin; no. 26) .
635.212 7 C333P