1. Primer of Epidemiology;Friedman,1980
2. Locational Analysis in Human Geography 2: Locational Methods;Haggett,1977
3. Foundations of Epidemiology;Lilienfeld,1978
4. Epidemiology: Principles and Methods;MacMahon,1970
5. Geography of disease: purpose and possibilities from geographical medicine;Burkitt,1981