National longitudinal study of the high school class of 1972 : sample design efficiency study: effects of stratification, clustering, and unequal weighting on the variances of NLS statistics /

Project officer: William B. Fetters.

Self-Study For Field Representatives, National Longitudinal Surveys, 1997 Survey Of Women, NLS/CAPI-A024, (May 1997)

Shipping List Date: 06/19/97