@misc{indiciaea1c95454f304, title = {An abbreviation key for the DASCH System: A lithostratigraphic information storage and retrieval system}, author = {Juergen Reinhardt and J. Nicholas Van Driel}, year = {1978}, doi = {10.3133/ofr78961}, url = {https://pubs.usgs.gov/publication/ofr78961}, note = {Source identifier: ofr78961} }