APA (7th ed.) Citation

Labor, U. D. o. (1992). What works: Workplaces without drugs. Washington, DC.

Chicago Style (17th ed.) Citation

Labor, USA. Department of. What Works: Workplaces Without Drugs. Washington, DC, 1992.

MLA (8th ed.) Citation

Labor, USA. Department of. What Works: Workplaces Without Drugs. Washington, DC, 1992.

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