TY  - RPRT
TI  - Catalog of thin sections available at the USGS Core Research Center, Denver, Colorado
AU  - D.L. Richards
AU  - T.C. Michalski
PY  - 1987
DO  - 10.3133/ofr87659
UR  - https://pubs.usgs.gov/publication/ofr87659
ID  - ofr87659
ER  -