000 00493nam a2200205Ia 4500
005 20250619145042.0
008 250619s9999||||xx |||||||||||||| ||und||
020 _c90
040 _aMAIN
041 _aEnglish
082 _a370.1523
_bLEE
100 _aLeedham, John and Unwin, Derick
245 0 _aProgrammed learning in the schools
250 _a2nd ed.
260 _aLondon
_b; Longman
_c, 1971
300 _axv,140p.
650 _aEducation
650 _aLearning
942 _cBK
999 _c119821
_d119821