1. Preliminary results from the S-161 X-ray fluorescence experiment;Adler,1972
2. Feldspathic basalts in lunar soils and the nature of the lunar highlands;Apollo Soil Survey,1971
3. A first look at the lunar orbital gamma ray data;Arnold,1972
4. Tektites;Baker;Mem. Nat. Mus. Vict.,1959
5. North American tektites;Barnes;Univ. Texas Publ.,1940