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Pamphlets on forestry in West Virginia (1900)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1955)

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Papéis avulsos do Departamento de Zoologia - São Paulo Departamento de Zoologia (A Secretaria, 1945)

Papers on Diptera - Hendel, Friedrich, 1874 -1936 (Smithsonian Institution, 1901)

Papers on Diptera - Meade, Richard Henry 1814 -1899 (Smithsonian Institution, 1881)

Papers on Diptera - Hendel, Friedrich, 1874 -1936 (Smithsonian Institution, 1800)

Papers on Diptera - Meade, Richard Henry 1814 -1899 (Smithsonian Institution, 1891)

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Parasitic and predaceous insects in applied entomology - Riley, Charles V. (Charles Valentine), 1843 -1895 (Govt. print. off, 1893)

Parasitology (Cambridge University Press, 1920)

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