APA (7th ed.) Citation

(1930). Northwest history. Mining. Production. 1930-03-18.

Chicago Style (17th ed.) Citation

Northwest History. Mining. Production. 1930-03-18. 1930.

MLA (9th ed.) Citation

Northwest History. Mining. Production. 1930-03-18. 1930.

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