@article{242237,
      recid = {242237},
      author = {Paarlberg, Don, and Paarlberg, P. L.},
      title = {The agricultural revolution of the 20th century / Don  Paarlberg and Philip Paarlberg.},
      publisher = {Iowa State University Press,},
      address = {Ames :},
      pages = {xvi, 154 p. :},
      year = {2000},
      url = {http://library.usi.edu/record/242237},
}