@inproceedings{RN699,
   author = {Hamilton, Elizabeth G. and Williams, Carolyn D.},
   title = {Manipulating Large Highway and Crash Datasets},
   booktitle = {Northeast SAS Users Group Fifth Annual Conference},
   address = {Cary, NC},
   publisher = {SAS Institute},
   pages = {91-96},
   type = {Conference Proceedings}
}