@article{604238,
      note = {Preface signed: W. Emerson.},
      author = {Emerson, William,},
      url = {http://library.usi.edu/record/604238},
      title = {The elements of trigonometry. Containing the properties,  relations, and calculations of sines, tangents, secants,  &c. The doctrine of the sphere, and the principles of  plain and spherical trigonometry. All plainly and clearly  demonstrated. [electronic resource] :},
      publisher = {printed for J. Nourse, Bookseller in Ordinary to his  Majesty,},
      recid = {604238},
      pages = {viii,240,[282]p.,tables ;},
      address = {London :},
      year = {1764},
}