LEADER 00000cam a2200385Ia 4500 001 ocm02834749 005 20130716162516.0 008 770325s1962 dcuab b f001 0 eng d 035 (OCoLC)2834749 040 CSU|cCSU|dm.c.|dAGL 049 RIDM 070 0 407|bG29B no.1082-M 072 X400|aP300 090 QE75 .B9 no.1082-M 100 1 Knechtel, Maxwell M.|q(Maxwell McMichael),|d1897- 245 10 Bentonite deposits of the northern Black Hills district Wyoming, Montana, and South Dakota /|cby Maxwell M. Knechtel, and Sam H. Patterson. 260 Washington, [D.C.] :|bU.S. G.P.O.,|c1962. 300 p. vi, 893-1030 :|bill., maps ;|c24 cm. 490 1 Contributions to economic geology 490 1 Geological Survey bulletin ;|v1082-M 500 Three folded leaves in pocket. 500 Includes index. 504 Bibliography: p. 1024-1027. 650 0 Bentonite deposits|zWyoming|zCrook County. 650 0 Bentonite deposits|zMontana|zCarter County. 650 0 Bentonite deposits|zSouth Dakota|zButte County. 700 1 Patterson, Sam H.|q(Sam Hunting),|d1918-2004. 830 0 Contributions to economic geology. 830 0 Geological Survey bulletin ;|v1082-M. 935 182777 948 |d20220526|cMH|tcr 035-9project