@article{57568,
      author = {Bartle, Robert G.,},
      url = {http://library.usi.edu/record/57568},
      title = {The elements of real analysis},
      publisher = {Wiley},
      recid = {57568},
      pages = {xiv, 447 p.},
      address = {New York,},
      year = {1964},
}