@misc{indiciaef6ca80d670ae, title = {Economic potential of the Red Sea heavy metal deposits}, author = {James L. Bischoff and Frank T. Manheim}, year = {1969}, doi = {10.1007/978-3-662-28603-6}, url = {https://pubs.usgs.gov/publication/70206928}, note = {Source identifier: 70206928} }