@misc{indiciae831982823d20, title = {Geology and Nonfuel Mineral Deposits of Africa and the Middle East}, author = {Cliff D. Taylor and Klaus J. Schulz and Jeff L. Doebrich and Greta Orris and Paul Denning and Michael J. Kirschbaum}, year = {2009}, doi = {10.3133/ofr20051294e}, url = {https://pubs.usgs.gov/publication/ofr20051294E}, note = {Source identifier: ofr20051294E} }