TY  - BOOK
AU  - Allen,Milton Arthur
AU  - Butler,G.M.
TI  - Barytes,
T2  - Arizona. Bureau of Mines. Bulletin
AV  - TN948.B18 A4
PY  - 1919///]
CY  - Tucson, Ariz.
PB  - University of Arizona, Bureau of Mines
KW  - Barite
N1  - Cover title; At head of title: University of Arizona bulletin; "Selected bibliography": p. 17-18
ER  -