000 00275pas a2200097 454500
008 160820b1964 xxu||||| |||| 00| 0 eng d
022 _a0951-0907
245 _aPROGRAMMED LEARNING & EDUCATIONAL TECHNOLOGY
260 _aLONDON
_bROUTLEDGE
_c1964
906 _a
_b
_c
_dJan - Dec,2008
999 _c472503
_d472503