@article{663888,
      note = {Reproduction of original from National Library of  Ireland.},
      author = {Mason, Charles, and Dixon, Jeremiah.},
      url = {http://library.usi.edu/record/663888},
      title = {Observations for determining the length of a degree of  latitude in the provinces of Maryland and Pennsylvania, in  North America By Messieurs Charles Mason and Jeremiah  Dixon. To which is prefixed an introduction: By the Rev.  Nevil Maskelyne, B.D.F.R.S. Astronomer royal. [electronic  resource] :},
      publisher = {[s.n.],},
      recid = {663888},
      pages = {67,[1]p.,plates ;},
      address = {London :},
      year = {1769},
}