TY  - BOOK
AU  - Short,Maxwell Naylor
TI  - Microscopic determination of the ore minerals,
T2  - U. S. Geological survey. Bulletin 825
AV  - QE75 .B9 no. 825
U1  - 549.1 
PY  - 1931///
CY  - Washington
PB  - U.S. Govt. Print. Off.
KW  - Mineralogy, Determinative
KW  - Ore deposits
N1  - At head of title: United States Department of the interior. Ray Lyman Wilbur, secretary. Geological survey. George Otis Smith, director; The second edition, 1940, was issued as U. S. Geological survey Bulletin 914; Bibliographical foot-notes
ER  -