APA ציטוט

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

Chicago Style Citation

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

ציטוט MLA

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