371.2944 Fil P Filep , Robert Thomas , ed . Prospectives in programed Instruction of the 1962 Center for Programed Instruction Institutes conducted at Teachers College , Columbia University of Chicago . Edited by Robert T . Filep . New York , Macmillan [ c1963 ] xii , 324 p . ilus ., diagrs . tablas . 22 cm . Bibliograf ia al final de los capĂ­tulos