Dyfyniad APA
ebrary, Inc. (2000). Observations on the President's fiscal year 2001 federal science and technology budget. National Academy Press.
Dyfyniad Arddull Chicago
ebrary, Inc. Observations on the President's Fiscal Year 2001 Federal Science and Technology Budget. Washington, D.C.: National Academy Press, 2000.
Dyfyniad MLA
ebrary, Inc. Observations on the President's Fiscal Year 2001 Federal Science and Technology Budget. National Academy Press, 2000.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.