U.S. Dept. of Justice, Drug Enforcement Administration, Office of Science and Technology, Forensic Science Division, Special Testing and Research Laboratory[1979]<A742-12>
National Institute of Law Enforcement and Criminal Justice, Law Enforcement Assistance Administration, U.S. Dept. of Justice : for sale by the Supt. of Docs., U.S. Govt. Print. Off.1977.<SC831-7>