National Survey of Family Growth, Cycle III : sample design, weighting, and variance estimation (DHHS publication ; no. (PHS) 85-1372) (Series 2, Data evaluation and methods research ; no. 98)
National Survey of Family Growth, Cycle III : sample design, weighting, and variance estimation
(DHHS publication ; no. (PHS) 85-1372) (Series 2, Data evaluation and methods research ; no. 98)