Gall midges of economic importance
Barnes, H.F.
Gall midges of economic importance by H.F. Barnes - London Grosby Lockwood & Son Ltd. - 160 p. & 3 pls.
Vol II : Gall midge of fodder crops
Gall Midges
Fodder Crops
595.7:632.77 / B 261 G
Gall midges of economic importance by H.F. Barnes - London Grosby Lockwood & Son Ltd. - 160 p. & 3 pls.
Vol II : Gall midge of fodder crops
Gall Midges
Fodder Crops
595.7:632.77 / B 261 G