@misc{indiciaeae53ec889d0d, title = {Documentation and users guide for USRFILES; DISCO seismic data base information retrieval program}, author = {F. N. Zihlman}, year = {1988}, doi = {10.3133/ofr88355}, url = {https://pubs.usgs.gov/publication/ofr88355}, note = {Source identifier: ofr88355} }