Dyfyniad APA

National Research Council (U.S.). Astronomy Survey Committee & ebrary, Inc. (1983). Reports of the panels. National Academy Press.

Dyfyniad Arddull Chicago

National Research Council (U.S.). Astronomy Survey Committee and Inc ebrary. Reports of the Panels. Washington, D.C.: National Academy Press, 1983.

Dyfyniad MLA

National Research Council (U.S.). Astronomy Survey Committee and Inc ebrary. Reports of the Panels. National Academy Press, 1983.

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