C 132.856~ IW Directory libraries special information-centers.- Directory of special libraries and' information centers. A guide to special libraries, research libraries ...Ed.by Margaret L. Young, Harold C. Young. /Mit Suppl/ 5th Ed. Vol.1.2.-Detroit,Michigan:Gale 40 Research Comp.,Book Tower (1979). 1. United States and Canada. XVII, 1279 S. 2. Geographie and personnel index.IX,715 S. /3./New special libraries.A periodic supplement to the 5th Ed./LO usg./