@misc{indiciaee3ecbf5d2174, title = {ISOEDIT : a program for interactive editing of seismic reflection velocity models computer file, Part A}, author = {Frederick N. Zihlman}, year = {1989}, doi = {10.3133/ofr89310a}, url = {https://pubs.usgs.gov/publication/ofr89310A}, note = {Source identifier: ofr89310A} }