Précis des caractères gérériques des insectes, disposés dans un ordre naturel - Latreille, P. A. (Pierre André), 1762 -1833 (F. Bourdeaux, 1796)

Précis des caractères génériques des insectes, disposés dans un ordre naturel - Latreille, P. A. (Pierre André), 1762 -1833 (Prèvôt; [etc., etc, 1796)

Preliminary assessment of the water quality, biological habitat, and biotic communities of the Yalobusha River Watershed - Cooper, Charles M. (National Sedimentation Laboratory, 1998)

A preliminary classification of Diptera, exclusive of Pupipara, based upon larval and pupal characters, with keys to imagines in certain families - Malloch, John Russell, 1875 -1963 (1917)

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A preliminary report on the aquatic invertebrate fauna of the Yellowstone National Park, Wyoming, and of the Flathead Region of Montana - Forbes, Stephen Alfred, 1844 -1930 (Govt. Prtg. Off, 1893)

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Proceedings and transactions of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (The Society, 1959)

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Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1924)

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