Methodological issues for vital rates and population estimates : 1997 OMB standards for data on race and ethnicity / Jane S. Durch and Jennifer H. Madans.
Hyattsville, Md. : U.S. Dept. of Health and Human Services, Centers for Disease Control and Prevention, National Center for Health Statistics ; Washington, D.C. : For sale by the U.S. G.P.O., Supt. of Docs.,