00383nam a2200145Ia 450000500170000000800460001703700120006304000200007504100130009508400210010810000220012924500260015126000480017730000120022520250508161716.0008  250505s9999    xx            000 0 eng d  aTextual  aFEDLbengcFEDL  aeng2eng  a371.3, VANqFEDL  aVandenberg Donald 0aTeaching and learning  aUrbana bUniversity of Illinois Pressc1969  ax,297p.