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1.
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A contribution to the knowledge of variation in Opheodrys vernalis (Harlan), with the description of a new subspecies Grobman, Arnold B
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2.
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Are Prices Higher For the Poor in New York City? Richburg Hayes, Lashawn
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3.
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Additions to the knowledge of the amphibians of the Estacion de Biologia Tropical "Los Tuxtlas" Pérez Higareda, Gonzalo
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