@misc{indiciae1d7de3442472, title = {Phospatic rock in the Nizampur area of the Kala Chitta Hills, Pakistan}, author = {Charles R. Meissner}, year = {1973}, doi = {10.3133/ofr73182}, url = {https://pubs.usgs.gov/publication/ofr73182}, note = {Source identifier: ofr73182} }