APA (7th ed.) Citation

Bastin, E. S. (1922). Silver enrichment in the San Juan Mountains, Colorado. US Gov. Print. Off.

Chicago Style (17th ed.) Citation

Bastin, Edson S. Silver Enrichment in the San Juan Mountains, Colorado. Washington, DC: US Gov. Print. Off, 1922.

MLA (9th ed.) Citation

Bastin, Edson S. Silver Enrichment in the San Juan Mountains, Colorado. US Gov. Print. Off, 1922.