Grand Canyon. View across south foot of Toroweap. "The volcanic cone is seen on right top, FSD". (See 897, where pencil sketch "hitched this on to it", to left of photo no. 897, FSD). Hillers photo. Old nos. 219, 472, 506, 937.

Chicago citation style
War Department. Office of the Chief of Engineers. Powell Survey. (1869 - ca. 1874). Grand Canyon. View across south foot of Toroweap. "The volcanic cone is seen on right top, FSD". (See 897, where pencil sketch "hitched this on to it", to left of photo no. 897, FSD). Hillers photo. Old nos. 219, 472, 506, 937.. 1871-01-01/1878-12-31. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/518023. (Accessed October 21, 2018.)
APA citation style
War Department. Office of the Chief of Engineers. Powell Survey. (1869 - ca. 1874), (1871-01-01/1878-12-31) Grand Canyon. View across south foot of Toroweap. "The volcanic cone is seen on right top, FSD". (See 897, where pencil sketch "hitched this on to it", to left of photo no. 897, FSD). Hillers photo. Old nos. 219, 472, 506, 937.. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/518023
MLA citation style
War Department. Office of the Chief of Engineers. Powell Survey. (1869 - ca. 1874). Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/518023>.
Note: These citations are programmatically generated and may be incomplete.