Matheson Library Search for 'au:"Van Emden, Helmut Fritz."'

Pests of grain legumes :

London : Academic Press, 1978 . xv, 454 p. : , Proceedings of the symposium sponsored by the International Institute for Tropical Agriculture and the Agricultural Research Council of Nigeria, Nov. 8-13, 1976.

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Pest control and its ecology

By Van Emden, Helmut Fritz. London Edward Arnold 1974 . [4], 60 p. 23 cm..

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Aphid technology

London Academic Press 1972 . xiv, 344 p. 24 cm..

Place Hold on Aphid technology