TY  - BOOK
AU  - McGann, Paul W.
TI  - Minerals yearbook 1951: Paul W. McGann
U1  - 549.02 
PY  - 1954///
CY  - Washington
PB  - Govt Printing Office
KW  - Minerals - periodicals Mineralogy
N1  - Prepared by the staff of the Bureau of mines seal of department of the interiro
ER  -