@book{TL-136-NIDA,
author="McCaffrey, Daniel F. and Lane F. Burgette and Beth Ann Griffin and Craig Martin and Greg Ridgeway",
title="Toolkit for Weighting and Analysis of Nonequivalent Groups: A Tutorial for the TWANG SAS Macros",
address="Santa Monica, CA",
year="2014",
doi="10.7249/TL136",
publisher="RAND Corporation"
}%n