1. The Environment and Disease: Association or Causation?;Bradford Hill,1965
2. Science and Human Values;Bronowski,1965
3. Systematic Epidemiologic Theory: Conceptual Foundations and Axiomatic Elements;Lower;Med. Hypothesis,1983
4. Spinoza on Democracy;Sacksteder,1975
5. The Ecology of Infectious and Neoplastic Disease: A Conceptual Unification;Lower;Ecology of Disease,1983