MacCallion, G. (1988). Drug testing of transportation workers: The pros and cons CRS report for Congress / Congressional Research Service, the Library of Congress.
Cita Chicago Style (17a ed.)MacCallion, Gail. "Drug Testing of Transportation Workers: The Pros and Cons." CRS Report for Congress / Congressional Research Service, the Library of Congress 1988.
Cita MLA (8a ed.)MacCallion, Gail. "Drug Testing of Transportation Workers: The Pros and Cons." CRS Report for Congress / Congressional Research Service, the Library of Congress, 1988.
Precaución: Estas citas no son 100% exactas.