Luedtke, B. E. (1992). An archaeologist's guide to chert and flint. Institute of Archaeology, University of California.
Cita Chicago Style (17a ed.)Luedtke, Barbara E. An Archaeologist's Guide to Chert and Flint. Los Angeles: Institute of Archaeology, University of California, 1992.
Cita MLA (9a ed.)Luedtke, Barbara E. An Archaeologist's Guide to Chert and Flint. Institute of Archaeology, University of California, 1992.
Precaución: Estas citas no son 100% exactas.