Tysdal, R. G., & Tysdal, R. G. (2000). Revision of Middle Proterozoic Yellowjacket Formation, Central Idaho, and revision of Cretaceous Slim Sam Formation, Elkhorn Mountains area, Montana. Denver, Colo.: U.S. Departamento of the Interior, Geological Survey.
Citación estilo ChicagoTysdal, Russell G., y Russell G. Tysdal. Revision of Middle Proterozoic Yellowjacket Formation, Central Idaho, and Revision of Cretaceous Slim Sam Formation, Elkhorn Mountains Area, Montana. Denver, Colo.: U.S. Departamento of the Interior, Geological Survey, 2000.
Cita MLATysdal, Russell G., y Russell G. Tysdal. Revision of Middle Proterozoic Yellowjacket Formation, Central Idaho, and Revision of Cretaceous Slim Sam Formation, Elkhorn Mountains Area, Montana. Denver, Colo.: U.S. Departamento of the Interior, Geological Survey, 2000.