TY  - BOOK
AU  - Ferguson,Henry G.
TI  - Graphite in 1916
T2  - Mineral Resources of the United States, 1916-Part II
U1  - 553.26 
PY  - 1917///
CY  - Washington, D.C.
PB  - Government Printing Office
KW  - MINERIA
KW  - GRAFITO
N1  - Impreso
ER  -