Vol. s3-15, Issue 90, 1878June 01, 1878 EDT
Geographical and Geological Survey of the Rocky Mountain Region Under the Direction of Professor J. W. Powell, Account of Work Performed During the Year 1877
Geographical and Geological Survey of the Rocky Mountain Region Under the Direction of Professor J. W. Powell, Account of Work Performed During the Year 1877
American Journal of Science,
American Journal of Science. (1878). Geographical and geological survey of the Rocky Mountain region under the direction of Professor J. W. Powell, account of work performed during the year 1877. American Journal of Science, s3-15(90), 449–455. https://doi.org/10.2475/ajs.s3-15.90.449