Vol. s5-25, Issue 145, 1933January 01, 1933 EDT
Date of Recent Volcanism in Colorado
Date of Recent Volcanism in Colorado
Robert E. Landon,
Landon, R. E. (1933). Date of recent volcanism in Colorado. American Journal of Science, s5-25(145), 20–24. https://doi.org/10.2475/ajs.s5-25.145.20