APA (7th ed.) Citation

Wirtz, W. W. (1964). Important events in American labor history 1778 - 1963. U.S. Department of Labor.

Chicago Style (17th ed.) Citation

Wirtz, William Willard. Important Events in American Labor History 1778 - 1963. [Washington D.C.]: U.S. Department of Labor, 1964.

MLA (9th ed.) Citation

Wirtz, William Willard. Important Events in American Labor History 1778 - 1963. U.S. Department of Labor, 1964.

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