@article{97785,
      note = {"FHWA-RD-77-53."},
      author = {Richardson, E. S.},
      url = {http://library.usi.edu/record/97785},
      title = {The investigation of present aggregate graduation control  practices and the development of short-cut or alternative  test methods : interim report : prepared for Federal  Highway Administration, Offices of Research and Development  /},
      publisher = {Offices of Research and Development,  Federal Highway  Administration, U₋b0₋sS. Dept. of Transportation,},
      recid = {97785},
      pages = {vii, 108 p. :},
      address = {Washington, D.C. :},
      year = {1977},
}