Proficiency standards for drug testing laboratories microform : hearings before a subcommittee of the Committee on Government Operations, House of Representatives, One hundredth Congress, first session, June 10 and 11, 1987.
United States.Congress.House.Committee on Government Operations.Government Information, Justice, and Agriculture Subcommittee.
Washington, [D.C.] : U.S. G.P.O.,
1987.
Microfiche.
Chemical laboratories
Drug testing
Chemical laboratories
Drug testing