Keller, Peter C., 1947-
Gemstones and their origins / Peter C. Keller ; featuring photographs by Harold and Erica Van Pelt ; foreword by Edward G ubelin. - New York : Van Nostrand Reinhold, c1990. - xv, 144 p. : ill. (some col.)
0442319452
91045062
Precious stones.
Gemstones and their origins / Peter C. Keller ; featuring photographs by Harold and Erica Van Pelt ; foreword by Edward G ubelin. - New York : Van Nostrand Reinhold, c1990. - xv, 144 p. : ill. (some col.)
0442319452
91045062
Precious stones.