Dyfyniad APA
ebrary, Inc. (1995). Improving the environment: An evaluation of DOE's environmental management program. National Academy Press.
Dyfyniad Arddull Chicago
ebrary, Inc. Improving the Environment: An Evaluation of DOE's Environmental Management Program. Washington, DC: National Academy Press, 1995.
Dyfyniad MLA
ebrary, Inc. Improving the Environment: An Evaluation of DOE's Environmental Management Program. National Academy Press, 1995.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.