Dyfyniad APA

National Academy of Engineering, Ausubel, J., & Sladovich, H. E. (1989). Technology and environment. National Academy Press.

Dyfyniad Arddull Chicago

National Academy of Engineering, Jesse Ausubel, and Hedy E. Sladovich. Technology and Environment. Washington, D.C.: National Academy Press, 1989.

Dyfyniad MLA

National Academy of Engineering, et al. Technology and Environment. National Academy Press, 1989.

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