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.
Παραπομπή σε μορφή Chicago (17η εκδ.)National Research Council (U.S.). Panel to Evaluate Alternative Census Methods, Inc ebrary, Duane L. Steffey, και Norman M. Bradburn. Counting People in the Information Age. Washington, D.C.: National Academy Press, 1994.
Παραπομπή σε μορφή MLA (9th εκδ.)National Research Council (U.S.). Panel to Evaluate Alternative Census Methods, et al. Counting People in the Information Age. National Academy Press, 1994.
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