Dyfyniad APA
National Research Council (U.S.). Panel to Evaluate Alternative Census Methods, ebrary, Inc, Steffey, D. L., & Bradburn, N. M. (1994). Counting people in the information age. National Academy Press.
Dyfyniad Arddull Chicago
National Research Council (U.S.). Panel to Evaluate Alternative Census Methods, Inc ebrary, Duane L. Steffey, and Norman M. Bradburn. Counting People in the Information Age. Washington, D.C.: National Academy Press, 1994.
Dyfyniad MLA
National Research Council (U.S.). Panel to Evaluate Alternative Census Methods, et al. Counting People in the Information Age. National Academy Press, 1994.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.