@article{256001,
      author = {Shogren, Jason F. and Tschirhart, John.},
      url = {http://library.usi.edu/record/256001},
      title = {Protecting endangered species in the United States :  biological needs, political realities, economic choices /},
      publisher = {Cambridge University Press,},
      recid = {256001},
      pages = {xxxvi, 401 p. :},
      address = {Cambridge ;},
      year = {2001},
}