@article{64833,
      recid = {64833},
      author = {Crathorne, A. R. and Moore, Gerald E.},
      title = {Brief trigonometry; a text in twenty assignments},
      publisher = {H. Holt and company},
      address = {New York,},
      pages = {v, 121 p.},
      year = {1941},
      url = {http://library.usi.edu/record/64833},
}