APA
Clayton D. H., . (1993). Statistical models in Epidemiology. Kigali: Oxford University Press.
Chicago
Clayton D& Hills,M, . 1993. Statistical models in Epidemiology. Kigali: Oxford University Press.
Harvard
Clayton D. H., . (1993). Statistical models in Epidemiology. Kigali: Oxford University Press.
MLA
Clayton D& Hills,M, . Statistical models in Epidemiology. Kigali: Oxford University Press. 1993.