Boyden, S. (1992). Biohistory: The interplay between human society and the biosphere : past and present. Unesco and Parthenon Publishing Group.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBoyden, S. Biohistory: The Interplay Between Human Society and the Biosphere : Past and Present. Paris: Unesco and Parthenon Publishing Group, 1992.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBoyden, S. Biohistory: The Interplay Between Human Society and the Biosphere : Past and Present. Unesco and Parthenon Publishing Group, 1992.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.