TY  - RPRT
TI  - A statistical analysis of the larger Silurian reefs in the northern part of the Lower Peninsula of Michigan
AU  - Ronald R. Charpentier
PY  - 1989
DO  - 10.3133/ofr89216
UR  - https://pubs.usgs.gov/publication/ofr89216
ID  - ofr89216
ER  -