Geologic Reconnaissance of Ayusbamba (Peru) Fossil Beds
Geologic Reconnaissance of Ayusbamba (Peru) Fossil Beds
H. E. Gregory,
Gregory, H. E. (1914). Geologic Reconnaissance of Ayusbamba (Peru) Fossil Beds. American Journal of Science, 125–140. https://doi.org/10.2475/ajs.s4-37.218.125