@article{392338,
      author = {O'Brien, Michael J. and Shennan, Stephen.},
      url = {http://library.usi.edu/record/392338},
      title = {Innovation in cultural systems contributions from  evolutionary anthropology / [electronic resource] :},
      publisher = {MIT Press,},
      recid = {392338},
      pages = {xi, 284 p. :},
      address = {Cambridge, Mass. ;},
      year = {2009},
}