 | Insect populations Congresses. | (1) |
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 | Forest insect population dynamics : proceedings of the Forest Insect Population Dynamics Workshop, West Haven, Connecticut, 23-27 January, 1967. Forest Insect Population Dynamics Workshop (1967 : West Haven, Conn.) mn Upper Darby, Pa. : Northeastern Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1969. | |
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