@article{112295,
      author = {Higgs, Theodore V.},
      url = {http://library.usi.edu/record/112295},
      title = {Teaching for proficiency : the organizing principle /},
      publisher = {National Textbook Co.,},
      recid = {112295},
      pages = {v, 234 p. :},
      address = {Lincolnwood, Ill., U.S.A. (4255 W. Touhy Ave., Lincolnwood  60646-1975) :},
      year = {1984},
}