@article{1835,
      author = {McHenry, Robert, and Van Doren, Charles,},
      url = {http://library.usi.edu/record/1835},
      title = {A documentary history of conservation in America.},
      publisher = {Praeger},
      recid = {1835},
      pages = {xviii, 422 p.},
      address = {New York,},
      year = {1972},
}