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| Rocks & Min., March 1998. |
| Nold, J. L., Davidson, P., & Dudley, M. A. (2013). The pilot knob magnetite deposit in the Proterozoic St. Francois Mountains Terrane, southeast Missouri, USA: A magmatic and hydrothermal replacement iron deposit. Ore Geology Reviews, 53, 446-469. |
| Rocks & Min. March 1998 |
| Sherwood, Mark D., Williams, Glenn A. (1998) Missouri Mineral Locality Index. Rocks & Minerals, 73 (2) 98-117 doi:10.1080/00357529809603046 |