APA (7th ed.) Citation

O'Connor, H. (1950). History of Oil Workers Intl. Union (CIO). Oil Workers Intl. Union (CIO).

Chicago Style (17th ed.) Citation

O'Connor, Harvey. History of Oil Workers Intl. Union (CIO). Denver: Oil Workers Intl. Union (CIO), 1950.

MLA (9th ed.) Citation

O'Connor, Harvey. History of Oil Workers Intl. Union (CIO). Oil Workers Intl. Union (CIO), 1950.

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