Vol. s5-28, Issue 168, 1934December 01, 1934 EDT
Paleontology of the Littleton Area, New Hampshire
Paleontology of the Littleton Area, New Hampshire
Marland Pratt Billings, Arthur Bailey Cleaves,
Billings, M. P., & Cleaves, A. B. (1934). Paleontology of the Littleton Area, New Hampshire. American Journal of Science, s5-28(168), 412–438. https://doi.org/10.2475/ajs.s5-28.168.412