00923cam a22002531 4500 gs 60000177 DLC 20260227111409.0 780807s1959 txua 000 0 eng gs 60000177 (OCoLC)4117137 DLC TxEU DLC premarc TN24.N6 A232 no. 69 Austin, Carl Fulton, 1932- Lined-cavity shaped charges and their use in rock and earth materials. Socorro, State Bureau of Mines and Mineral Resources, New Mexico Institute of Mining & Technology, 1959. viii, 80 p. illus (part col.) diagrs., tables, 23 cm. New Mexico. Bureau of Mines and Mineral Resources. Bulletin 69 Bibliography: p. 74-76. Blasting. Explosives Testing. Bulletin (New Mexico. Bureau of Mines and Mineral Resources) ; 69. 29436 29436