Potato aphids and their management
Verma, K.D.
Potato aphids and their management K.D.Verma and V.K.Chandla - Shimla Central Potato Research Institute 1999 - i, 34p.; 25cm. - (Technical bulletin; no. 26) .
635.212 7 V59P
Potato aphids and their management K.D.Verma and V.K.Chandla - Shimla Central Potato Research Institute 1999 - i, 34p.; 25cm. - (Technical bulletin; no. 26) .
635.212 7 V59P