Boyden, S. (1992). Biohistory: The interplay between human society and the biosphere : past and present. Unesco and Parthenon Publishing Group.
Chicago-viite (17. p.)Boyden, S. Biohistory: The Interplay Between Human Society and the Biosphere : Past and Present. Paris: Unesco and Parthenon Publishing Group, 1992.
MLA-viite (9. p.)Boyden, S. Biohistory: The Interplay Between Human Society and the Biosphere : Past and Present. Unesco and Parthenon Publishing Group, 1992.
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