Lillard, R. G. (1966). Eden in jeopardy: Man's prodigal meddling with his environment. Knopf.
Chicago-viite (17. p.)Lillard, Richard Gordon. Eden in Jeopardy: Man's Prodigal Meddling with His Environment. New York: Knopf, 1966.
MLA-viite (9. p.)Lillard, Richard Gordon. Eden in Jeopardy: Man's Prodigal Meddling with His Environment. Knopf, 1966.
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