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james a mears
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Plant Taxonomic Literature Microfiche Collection
James A. Mears · Chadwyck-Healey
177 sayfa · 1989
Plants / Bibliography / Plant taxonomic literature microfiche collection / Classification / Indexes
Indices to the microfiche of the types and special collections (flowering plants and ferns) of the herbarium of the Academy of Natural Sciences of Philadelphia
James A. Mears · Meckler Pub.
274 sayfa · 1984
Academy of Natural Sciences of Philadelphia / Angiosperms / Catalogs / Catalogs and collections / Ferns