Dyfyniad APA

Olson 1956-. (1989). Shaping the future: Biology and human values. Washington, D.C: National Academy Press.

Dyfyniad Arddull Chicago

Olson 1956-. Shaping the Future: Biology and Human Values. Washington, D.C: National Academy Press, 1989.

Dyfyniad MLA

Olson 1956-. Shaping the Future: Biology and Human Values. Washington, D.C: National Academy Press, 1989.

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