Showing 1 - 3 results of 3 for search 'Webster, Robert' Refine Results
  1. 1
    Gems : their sources, descriptions and indentification / Robert Webster.
    by Webster, Robert
    Published 1983
    Edition: 4th ed. /
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  2. 2
    The Gemmologist's compendium.
    by Webster, Robert
    Published 1980
    Edition: 6th edition.
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  3. 3
    Practical gemmology : a study of the identification of gemstones, pearls and ornamental minerals.
    by Webster, Robert
    Published 1978
    Edition: Sixth edition.
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