Mites injurious to economic plants /

by Jeppson, Lee R., 1910-
Published 1975

Mites injurious to economic plant /

by Jeppson, Lee R., Jeppson, Lee R., Keifer, Hartford H., Baker, Edward William 1914-
Published 1975

Modern insecticides and world food /

by Gunther, F. A.
Published 1960