Abstract
PowerPack (Version 2.22) Russell V. Lenth. 3061 Hastings Avenue, Iowa City, Iowa 52245; (319) 337–8549. Bitnet: Blarvlpd @ Uiamvs. $195; 50% educational discount. Reviewed by Ralph G. O'Brien
Nwa Statpak (Version 4.1) Northwest Analytical Inc. 520 N.W. Davis Street, Portland, Oregon 97209; (503) 224–7727. $495; discounts for academic users and multiple-copy users. Reviewed by Barbara L. Mann