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Annual report - Biological Control of Weeds Laboratory–Europe. (The Laboratory, 1986)

Annual report - Biological Control of Weeds Laboratory–Europe. (The Laboratory, 1984)

Annual report - Biological Control of Weeds Laboratory–Europe. (The Laboratory, 1988)

Annual report - Biological Control of Weeds Laboratory–Europe. (The Laboratory, 1988)

British journal of entomology and natural history - British Entomological; Natural History Society. (British Entomological and Natural History Society, 2010)

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Cooperative economic insect report - United States. Bureau of Entomology; Plant Quarantine. (U.S. Dept. of Agriculture, Agricultural Research Administration, Bureau of Entomology and Plant Quarantine, 1951)

Cooperative economic insect report - United States. Bureau of Entomology; Plant Quarantine. (Plant Protection and Quarantine Programs Animal and Plant Health Service, 1970)

Cooperative economic insect report - United States. Bureau of Entomology; Plant Quarantine. (Plant Protection and Quarantine Programs Animal and Plant Health Service, 1951)

Cooperative economic insect report - United States. Bureau of Entomology; Plant Quarantine. (Plant Protection and Quarantine Programs Animal and Plant Health Service, 1951)

Cooperative economic insect report - United States. Bureau of Entomology; Plant Quarantine. (Plant Protection and Quarantine Programs Animal and Plant Health Service, 1971)

Cooperative economic insect report - United States. Bureau of Entomology; Plant Quarantine. (Plant Protection and Quarantine Programs Animal and Plant Health Service, 1971)

Cooperative economic insect report - United States. Bureau of Entomology; Plant Quarantine. (U.S. Dept. of Agriculture, Agricultural Research Administration, Bureau of Entomology and Plant Quarantine, 1951)

Cooperative economic insect report - United States. Bureau of Entomology; Plant Quarantine. (U.S. Dept. of Agriculture, Agricultural Research Administration, Bureau of Entomology and Plant Quarantine, 1951)

Cooperative economic insect report - United States. Bureau of Entomology; Plant Quarantine. (U.S. Dept. of Agriculture, Agricultural Research Administration, Bureau of Entomology and Plant Quarantine, 1951)

Insects associated with wild plants in Europe and the Middle East : biological control of weeds surveys - United States. Science; Education Administration. (Science and Education Administration ; for sale by the Supt. of Docs., U.S. G.P.O, 1980)

Insects associated with wild plants in Europe and the Middle East : biological control of weeds surveys - United States. Science; Education Administration. (Science and Education Administration ; for sale by the Supt. of Docs., U.S. G.P.O, 1980)

Insects associated with wild plants in Europe and the Middle East : biological control of weeds surveys - United States. Science; Education Administration. (Science and Education Administration ; for sale by the Supt. of Docs., U.S. G.P.O, 1980)

Wild plants and their associated insects in the Palearctic region, primarily Europe and the Middle East - United States. Agricultural Research Service. (U.S. Dept. of Agriculture, Agricultural Research Service, 1999)

Wild plants and their associated insects in the Palearctic region, primarily Europe and the Middle East - United States. Agricultural Research Service. (U.S. Dept. of Agriculture, Agricultural Research Service, 1999)

Wild plants and their associated insects in the Palearctic region, primarily Europe and the Middle East - United States. Agricultural Research Service. (U.S. Dept. of Agriculture, Agricultural Research Service, 1999)