@article{DA,
      author = {University of Southern Indiana},
      url = {http://library.usi.edu/record/1510515},
      title = {Ralph D. Gray Collection},
      publisher = {University of Southern Indiana},
      abstract = {The Ralph Gray collection consists of newsletters,  research materials, newspaper clippings, and other material  about canal and water transportation and railroads in  various cities in Indiana. It also contains many political  campaign buttons.},
      number = {DA},
      recid = {1510515},
      address = {1847-2011},
}