@article{538991,
      note = {With a half-title.},
      author = {Crosby, Thomas,},
      url = {http://library.usi.edu/record/538991},
      title = {The london practice or, an easy, expeditious, and  practical method to determine the amount of any quantity,  at any price. Being very necessary, and of great use to all  merchants, tradesmen, and others. By Thomas Crosby, Teacher  of the Mathematicks. [electronic resource] :},
      publisher = {printed for Aaron Ward, at the Duck in Little Britain,},
      recid = {538991},
      pages = {[4],iv,23,[1]p. ;},
      address = {London :},
      year = {1719},
}