Bucket for 40-yard dragline at Pittsburg and Midway Coal Mining Company's Edna Mine near Oak Creek, Colorado, circa 1960s
MLA
United States. Bureau of Mines. "Bucket for 40-yard dragline at Pittsburg and Midway Coal Mining Company's Edna Mine near Oak Creek, Colorado, circa 1960s." Georgia State University. Special Collections. 1960/1969, http://digitalcollections.library.gsu.edu/cdm/ref/collection/mhross/id/101254.
APA
United States. Bureau of Mines (1960/1969). Bucket for 40-yard dragline at Pittsburg and Midway Coal Mining Company's Edna Mine near Oak Creek, Colorado, circa 1960s. Retrieved from http://digitalcollections.library.gsu.edu/cdm/ref/collection/mhross/id/101254
Chicago
United States. Bureau of Mines. "Bucket for 40-yard dragline at Pittsburg and Midway Coal Mining Company's Edna Mine near Oak Creek, Colorado, circa 1960s." 1960/1969. April 26, 2026. http://digitalcollections.library.gsu.edu/cdm/ref/collection/mhross/id/101254.
