APA

Yale C. G., . (1916). Gold, silver, copper, lead and zinc in California and Oregon in 1915. Washington, D.C: Government Printing Office.

Chicago

Yale Charles G, . 1916. Gold, silver, copper, lead and zinc in California and Oregon in 1915. Washington, D.C: Government Printing Office.

Harvard

Yale C. G., . (1916). Gold, silver, copper, lead and zinc in California and Oregon in 1915. Washington, D.C: Government Printing Office.

MLA

Yale Charles G, . Gold, silver, copper, lead and zinc in California and Oregon in 1915. Washington, D.C: Government Printing Office. 1916.