APA (7th ed.) Citation

(1980). Hercules Mining Company, Day Mines Group, personnel records: Names extracted from employment cards 1918-1927. s.n..

Chicago Style (17th ed.) Citation

Hercules Mining Company, Day Mines Group, Personnel Records: Names Extracted from Employment Cards 1918-1927. [S.l..: s.n., 1980.

MLA (8th ed.) Citation

Hercules Mining Company, Day Mines Group, Personnel Records: Names Extracted from Employment Cards 1918-1927. s.n., 1980.

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