Hodge, M. J. S., & Kohn, D. The immediate origins of natural selection: M. J. S. Hodge. David Kohn. The Darwinian heritage : [incl. proceed. of the Charles Darwin Centenary Conference, Florence Center for the History and Philosophy of Science, June 1982].(1985).
Chicago-viite (17. p.)Hodge, M. J. S., ja David Kohn. "The Immediate Origins of Natural Selection: M. J. S. Hodge. David Kohn." The Darwinian Heritage : [incl. Proceed. of the Charles Darwin Centenary Conference, Florence Center for the History and Philosophy of Science, June 1982].(1985) .
MLA-viite (8. p.)Hodge, M. J. S., ja David Kohn. "The Immediate Origins of Natural Selection: M. J. S. Hodge. David Kohn." The Darwinian Heritage : [incl. Proceed. of the Charles Darwin Centenary Conference, Florence Center for the History and Philosophy of Science, June 1982].(1985), .