P-ISSN 0002-9599
E-ISSN 1945-452X
Vol. s3-32, Issue 188, 1886August 01, 1886 EDT
Classification of the Cambrian System of North America
Classification of the Cambrian System of North America
Charles Doolittle Walcott,
Walcott, C. D. (1886). Classification of the Cambrian system of North America. American Journal of Science, s3-32(188), 138–157. https://doi.org/10.2475/ajs.s3-32.188.138