@misc{indiciae7b1807c09e1c, title = {A guide to commonly used map projections prepared for use in HyperCard}, author = {Tau Rho Alpha and Joe F. Vigil and Lauren Buchholz}, year = {1988}, doi = {10.3133/ofr88364a}, url = {https://pubs.usgs.gov/publication/ofr88364A}, note = {Source identifier: ofr88364A} }