TitleOrigins of pest, parasite, disease and weed problems : the 18th Symposium of the British Ecological Society, Bangor, 12-14 April 1976 / edited by J.M. Cherrett and G.R. Sagar
Imprint Oxford : Blackwell Scientific, [c1977]
Descript x., 413 p. : ill., charts, tables ; 25 cm

Pests -- Congresses Parasites -- Congresses Plant diseases -- Congresses Weeds -- Congresses Field crops -- Diseases and pests Veterinary medicine -- Congresses

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