APA (7th ed.) Citation

(1920). Northwest history. Mining. Exploration. 1920-06-11.

Chicago Style (17th ed.) Citation

Northwest History. Mining. Exploration. 1920-06-11. 1920.

MLA (9th ed.) Citation

Northwest History. Mining. Exploration. 1920-06-11. 1920.

Warning: These citations may not always be 100% accurate.