@article{773029,
      author = {Graham, Michael H. and Parker, Joan, and Dayton, Paul  Kuykendall,},
      url = {http://library.usi.edu/record/773029},
      title = {The essential naturalist timeless readings in natural  history / [electronic resource] :},
      publisher = {University of Chicago Press,},
      recid = {773029},
      pages = {xiii, 534 p. :},
      address = {Chicago ;},
      year = {2011},
}