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Cellulose Nitrate Membrane Filter Sterile PK 100
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https://www.kentarchaeology.org.uk/books/selwitz-charles-1988-cellulose-nitrate-in-conservation-usa-the-getty-conservation-institute
Selwitz, Charles, 1988, Cellulose nitrate in conservation., U.S.A., The Getty Conservation...
Selwitz, Charles, 1988, Cellulose nitrate in conservation., U.S.A., The Getty Conservation Institute.
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