[developed by Ralph A. Oliva, M. Dean LaMont, Linda R. Fowler ; with contributions by Elizabeth McIntosh ... et. al. ; in cooperation with Ruth I. Hoffman ... et. al.]Texas Instruments Incorporatedc1984
[developed by the staff of the Texas Instruments Learning Center, Ralph A. Oliva, M. Dean LaMont, Linda R. Fowler ; with contributions by Elizabeth McIntosh ... et al. ; in cooperation with the staff of the University of Denver Mathematics Laboratory, Ruth I. Hoffman ... et al.]Texas Instruments Learning Centerc1976