APA (7th ed.) Citation

Barnum, D. T. The Negro in the bituminous coal mining industry.

Chicago Style (17th ed.) Citation

Barnum, Darold T. The Negro in the Bituminous Coal Mining Industry.

MLA (9th ed.) Citation

Barnum, Darold T. The Negro in the Bituminous Coal Mining Industry.

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