National Center for Education Statistics. 1997. An Overview of Response Rates in the National Household Education Survey: 1991, 1993, 1995, and 1996. Report 97-948.

TRB. 2003. Special Report 276: A Concept for a National Freight Data Program. National Research Council, Washington, D.C.

The National Academies of Sciences, Engineering, and Medicine
500 Fifth St. N.W. | Washington, D.C. 20001

Copyright © National Academy of Sciences. All rights reserved.
Terms of Use and Privacy Statement