Drug and alcohol testing : hearing before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred First Congress, first session, on S. 561 ... June 15, 1989.
United States.Congress.Senate.Committee on Commerce, Science, and Transportation.
Washington : U.S. G.P.O. : For sale by the Supt. of Docs., Congressional Sales Office, U.S. G.P.O.,
1989.
Distributed to some depository libraries in microfiche.
Shipping list no.: 89-612-P.
Item 1041-A, 1041-B
Includes bibliographical references.
Drug testing
Transport workers