Hardin, G. J. (1964). Population, evolution & birth control: A collage of controversial readings. W.H. Freeman.
Chicago-viite (17. p.)Hardin, Garrett James. Population, Evolution & Birth Control: A Collage of Controversial Readings. San Francisco: W.H. Freeman, 1964.
MLA-viite (9. p.)Hardin, Garrett James. Population, Evolution & Birth Control: A Collage of Controversial Readings. W.H. Freeman, 1964.
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