@article{65215,
      recid = {65215},
      author = {Raaen, Vernon F. and Ropp, Gus A. and Raaen, Helen P.},
      title = {Carbon-14},
      publisher = {McGraw-Hill},
      address = {New York,},
      pages = {388 p.},
      year = {1968},
      url = {http://library.usi.edu/record/65215},
}