Dyfyniad APA
ebrary, Inc, & Schulze, P. C. (1996). Engineering within ecological constraints. National Academy Press.
Dyfyniad Arddull Chicago
ebrary, Inc, and Peter C. Schulze. Engineering Within Ecological Constraints. Washington, D.C.: National Academy Press, 1996.
Dyfyniad MLA
ebrary, Inc, and Peter C. Schulze. Engineering Within Ecological Constraints. National Academy Press, 1996.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.