Vol. s3-50, Issue 298, 1895October 01, 1895 EDT
On the Igneous Rocks of the Sweet Grass Hills, Montana
On the Igneous Rocks of the Sweet Grass Hills, Montana
Walter Harvey Weed, L. V. Pirsson,
Weed, W. H., & Pirsson, L. V. (1895). On the igneous rocks of the Sweet Grass Hills, Montana. American Journal of Science, s3-50(298), 309–313. https://doi.org/10.2475/ajs.s3-50.298.309