APA (7th ed.) Citation

Ridgway, R. H., & United States. Bureau of Mines. (1929). Summarized data of gold production. United States Government Printing Office.

Chicago Style (17th ed.) Citation

Ridgway, Robert H., and United States. Bureau of Mines. Summarized Data of Gold Production. Washington, D.C.: United States Government Printing Office, 1929.

MLA (8th ed.) Citation

Ridgway, Robert H., and United States. Bureau of Mines. Summarized Data of Gold Production. United States Government Printing Office, 1929.