BookReviews : L. Sechrest, E. Perrin, and J. Bunker (Eds.). Research Methodology: Strengthening Causal Interpretations of Nonexperimental Data. (AHCPR Conference Proceedings, Tucson, AZ, April, 1987). Washington, DC: U.S. Department of Health and Human Services, Public Health Service, Agency for Health Care Policy and Research, 1990
Titel:
BookReviews : L. Sechrest, E. Perrin, and J. Bunker (Eds.). Research Methodology: Strengthening Causal Interpretations of Nonexperimental Data. (AHCPR Conference Proceedings, Tucson, AZ, April, 1987). Washington, DC: U.S. Department of Health and Human Services, Public Health Service, Agency for Health Care Policy and Research, 1990