A Revised Geologic Time-Table for North America
A Revised Geologic Time-Table for North America
Charles Schuchert, J. Barrell,
Schuchert, C., & Barrell, J. (1914). A Revised Geologic Time-Table for North America. American Journal of Science, 1–27. https://doi.org/10.2475/ajs.s4-38.223.1