Gall midges of economic importance. Vol 4 Gall midges of miscellaneous crops - H.F. Barnes (London Crosby Lockwood and Son Ltd, 1949)
H.F. Barnes: Gall midges of economic importance. Vol 4 Gall midges of miscellaneous crops. London. Crosby Lockwood and Son Ltd, 1949.--(632.2BAR)
ENGLISH