@article{192181,
      author = {Marshak, David.},
      url = {http://library.usi.edu/record/192181},
      title = {Action research on block scheduling /},
      publisher = {Eye On Education,},
      recid = {192181},
      pages = {xviii, 204 p. :},
      address = {Larchmont, NY :},
      year = {1997},
}