Dyfyniad APA
ebrary, Inc, & Grantz, A. (1991). Opportunities and priorities in arctic geoscience. National Academy Press.
Dyfyniad Arddull Chicago
ebrary, Inc, and Arthur Grantz. Opportunities and Priorities in Arctic Geoscience. Washington, D.C.: National Academy Press, 1991.
Dyfyniad MLA
ebrary, Inc, and Arthur Grantz. Opportunities and Priorities in Arctic Geoscience. National Academy Press, 1991.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.