Recommended methods for testing opium, morphine and heroin : manual for use by national drug testing laboratories /
United Nations International Drug Control Programme.Laboratory Section.
New York : United Nations,
1998.
At head of title: United Nations International Drug Control Programme, Vienna.
"ST/NAR/29"--T.p. verso.
Includes bibliographical references (p. 68).
Opium
Morphine
Heroin
Chemistry, Forensic