APA Format
37338;37339. (1981). Estimating the effects of social interventions. : Cambridge University Press
MLA Format
37338;37339. Estimating the effects of social interventions. : Cambridge University Press, 1981
Chicago Format
37338;37339. Estimating the effects of social interventions. : Cambridge University Press, 1981
Australian/Harvard Format
37338;37339. 1981. Estimating the effects of social interventions. Cambridge University Press