The persistent poppy : a computer-aided search for heroin policy

Gilbert Levin, Edward B. Roberts, Gary B. Hirsch ; with a foreword by John F. Collins
Bok · Engelsk · 1975

Utgitt	Cambridge, Mass. : Ballinger Pub. Co. , [1975]
Omfang	XVI, 229 s. : ill.
Emner	Heroin habit - United States Narcotics, Control of - United States System analysis Computers Vis mer... Heroin dependence Research design Systems analysis
ISBN	0884100316