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Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1981)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1983)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1984)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1985)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1987)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1988)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1989)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1990)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1991)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1992)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1993)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1996)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1997)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1998)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 2000)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 2003)

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

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1930)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1935)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1933)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1961)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1960)

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Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1960)

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Prodromus faunae mediterraneae, sive Descriptio animalium maris Mediterranei incolarum, quam comparata silva rerum quatenus innotuit, adiectis locis et nominibus vulgaribus eorumque auctoribus - Carus, Julius Victor, 1823 -1903 (E. Schweizerbart, 1889)

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The Prosobranchia of the Siboga Expedition - Schepman, M. M. (Mattheus Marinus), 1847 -1919 (E. J. Brill, 1909)

The Prosobranchia of the Siboga Expedition - Schepman, M. M. (Mattheus Marinus), 1847 -1919 (E. J. Brill, 1911)

The Prosobranchia of the Siboga Expedition - Schepman, M. M. (Mattheus Marinus), 1847 -1919 (E. J. Brill, 1913)