TY  - RPRT
TI  - Conodont color alteration; an index to organic metamorphism
AU  - Anita G. Epstein
AU  - Jack Burton Epstein
AU  - Leonard D. Harris
PY  - 1975
DO  - 10.3133/ofr75379
UR  - https://pubs.usgs.gov/publication/ofr75379
ID  - ofr75379
ER  -