TY  - RPRT
TI  - International strategic minerals inventory summary report; natural graphite
AU  - U.H. Krauss
AU  - H.W. Schmidt
AU  - H.A. Taylor
AU  - D. M. Sutphin
PY  - 1989
DO  - 10.3133/cir930h
UR  - https://pubs.usgs.gov/publication/cir930H
ID  - cir930H
ER  -