@article{58452,
      note = {Later ed. (c1976) entered under title: 2nd sourcebook for  science supervisors.},
      author = {Harbeck, Mary Blatt.},
      url = {http://library.usi.edu/record/58452},
      title = {A sourcebook for science supervisors.},
      publisher = {National Science Supervisors Association, a section of the  National Science Teachers Association},
      recid = {58452},
      pages = {144 p.},
      address = {Washington,},
      year = {1967},
}