00612nam a2200157Ia 4500001000400000003000500004005001700009008004100026110005300067245011300120260008300233300003100316490002800347650004200375650003700417265BIBL20160527193232.0911001|1961||||ilua   |||||||00010|eng|d20aFry George and Associates, inc.bChicago.2Local10aStudy of circulation control systemsbpublic libraries, college and university libraries, special libraries.0 aChicagobLibrary Technology Project of The American Library Associationc1961.  avii, 138 p. illus., tables0 aLTP publications, no. 1 0aLibrariesxCirculation, loans.2Local 0aCharging system Libraries2Local