00459nam a22001457a 450000500170000000800410001704100080005808200170006610000200008310000240010324501150012726000480024252100080029065000150029820261001154402.0261001b        |||||||| |||| 00| 0 eng d  aeng  a370.15 D J P  aJohn P. DeCECCO  aWilliam R. Crawford  aThe Psychology of Learning and Instruction (Educational Psychology) /cJohn P. DeCECCO and William R. Crawford  aNew Delhi :bPrentice-Hall of India,c1977.  aAll  aPhilosophy