Dyfyniad APA

Boyden, S. (1992). Biohistory: The interplay between human society and the biosphere : past and present. Unesco and Parthenon Publishing Group.

Dyfyniad Arddull Chicago

Boyden, S. Biohistory: The Interplay Between Human Society and the Biosphere : Past and Present. Paris: Unesco and Parthenon Publishing Group, 1992.

Dyfyniad MLA

Boyden, S. Biohistory: The Interplay Between Human Society and the Biosphere : Past and Present. Unesco and Parthenon Publishing Group, 1992.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.