@article{7092,
      author = {Burkhardt, Richard W.},
      url = {http://library.usi.edu/record/7092},
      title = {The spirit of system : Lamarck and evolutionary biology /},
      publisher = {Harvard University Press,},
      recid = {7092},
      pages = {285 p. ;},
      address = {Cambridge, Mass. :},
      year = {1977},
}