COMPOSITION OF THREE GLASS PHASES IN AN APOLLO 15 BASALT FRAGMENT.SWITZER GS.1972; SMITHSON. CONTRIB. EARTH SCI.; U.S.A.; 1972,1973, NUM. 0014, P. 25 A 30Serial Issue

THE DISCOVERY OF GARNETS CLOSELY RELATED TO DIAMONDS IN THE FINSCH PIPE, SOUTH AFRICAGURNEY JJ; SWITZER GS.1973; BEITR. MINERAL. PETROL.; DTSCH. ; 1973, VOL. 39, NUM. 0002, P. 103 A 116Serial Issue

GEMOLOGYHURLBUT CS JR; SWITZER GS.1979; USA/ENG/AUS/CAN; NEW YORK, CHICHESTER, BRISBANE, TORONTO. J. WILEY; DA. 1979; XII-243 P.; 24 CM; H.T. 12; BIBL. DISSEM.; 268 ILL.; ISBN 0 471 42224 XBook