References
- Bennett C. A., Franklin N. L. Statistical Analysis in Chemistry and the Chemical Industry. Wiley, New York 1954
- Blumberg H. H. Surveys of drug use among young people. Int. J Addict 1975; 10: 699–719
- Blumberg H. H., Cohen S. D., Dronfield B. E., Mordecai E. A., Roberts J. C., Hawks D. British opiate users. I. People approaching London drug treatment centres. Int. J. Addict 1974; 9: 1–23
- Blumberg H. H., Cohen S. D., Dronfield B. E., Mordecai E. A., Roberts J. C., Hawks D. Opiate use in London. J. Am. Med. Assoc 1975; 232: 1131–1132
- Campbell R. S., Freeland J. B. Patterns of drug abuse. Int. J. Addict 1974; 9: 289–300
- Fleiss J. L., Dunner D. L., Stallone F., Fieve R. R. The life table: A method for analyzing longitudinal studies. Arch. Gen. Psychiatry 1976; 33: 107–112
- Gergen M. K., Gergen K. J., Morse S. T. Correlates of marijuana use among college students. J. Appli. Soc. Psychol 1972; 2: 1–16
- Green B. F., Tukey J. W. Complex analyses of variance: general problems. Psychometrika 1960; 25: 127–152
- Kessler R. C., Paton S. M., Kandel D. B. Reconciling unidimensional and multidimensional models of patterns of drug use. J. Stud. Alcohol 1976; 37: 632–647
- Lindquist E. F. Design and Analysis of Experiments in Psychology and Education. Houghton Mifflin, Boston 1953
- Whitehead P. C., Cabral R. M. Scaling the sequence of drug using behaviours: A test of the stepping-stone hypothesis. Drug Forum 1975–76; 5: 45–54