TY  - RPRT
TI  - Paleozoic-Mesozoic boundary in the Berry Creek Quadrangle, northwestern Sierra Nevada, California
AU  - Anna Martta Hietanen
PY  - 1977
DO  - 10.3133/pp1027
UR  - https://pubs.usgs.gov/publication/pp1027
ID  - pp1027
ER  -