Dyfyniad APA
ebrary, Inc, Emison, G. A., & Morris, J. C. (2012). True green: Executive effectiveness in the U.S. Environmental Protection Agency. Lexington Books.
Dyfyniad Arddull Chicago
ebrary, Inc, Gerald A. Emison, and John C. Morris. True Green: Executive Effectiveness in the U.S. Environmental Protection Agency. Lanham: Lexington Books, 2012.
Dyfyniad MLA
ebrary, Inc, et al. True Green: Executive Effectiveness in the U.S. Environmental Protection Agency. Lexington Books, 2012.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.