TY  - BOOK
ED  - United States. Department of Commerce and Labor. Bureau of the Census
TI  - Mines and Quarries: 1929 : : General report and reports for states and for industries
T2  - Fifteenth Census of the United States: 1930
PY  - 1933///
CY  - Washington : 
PB  - Gov. Print. off., 
N1  - Prepared Under the Supervision of Frederick E. Berquist
ER  -