Jekel, J. F. (2001). Epidemiology, biostatistics, and preventive medicine. Philadelphia: Saunders.
शिकागो स्टाइल उद्धरणJekel, James F. Epidemiology, Biostatistics, and Preventive Medicine. Philadelphia: Saunders, 2001.
एमएलए उद्धरणJekel, James F. Epidemiology, Biostatistics, and Preventive Medicine. Philadelphia: Saunders, 2001.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.