@article{271913,
      recid = {271913},
      author = {Buck, Marilyn M.},
      title = {Assessing heart rate in physical education /},
      publisher = {National Association for Sport and Physical Education,},
      address = {Reston, VA :},
      pages = {ii, 20 p. :},
      year = {2002},
      url = {http://library.usi.edu/record/271913},
}