References
- Green , C. 1977 . A Study of Drug Use and Misuse by the Elderly in Osceola County, Florida Unpublished
- Guttmann , D. 1977 . A Survey of Drug Taking Behavior in the Elderly , Rockville , Maryland : NIDA .
- Kish , L. 1965 . Survey Sampling , New York : John Wiley .
- Petersen , D.M. , Whittington , F.J. and Payne , B.P. , eds. 1979 . Drugs and the Elderly: Social and Pharmacological Issues , Springfield , Illinois : Charles C Thomas .
- Warheit , G.J. , Arey , S.A. and Swanson , E. 1976 . Patterns of drug use: An epidemiologic review . Journal of Drug Issues , 6 : 223 – 237 .