This 1973 edition of the directory has been compiled primarily from data obtained from the Information Center on Education. An addition has been made in the listing of libraries of proprietary institutions offering one or more accredited degrees. The arrangement of the directory is alphabetical by name of institution. Data for each citation includes type of institution, names of principal staff members, number of volumes held, numbers of periodicals and serials received annually, annual expenditures on library materials and total operations, number of staff, and a listing of publications issued by the library. The data is gathered into two summary tables, one by name of institution and the other by size of institution. An index of head of librarians is included. (Author/SL)