@article{398691,
      author = {Weeks, John M. and Sachse, Frauke. and Prager, Christian  M.},
      url = {http://library.usi.edu/record/398691},
      title = {Maya daykeeping three calendars from highland Guatemala /  [electronic resource] :},
      publisher = {University Press of Colorado,},
      recid = {398691},
      pages = {xii, 221 p. :},
      address = {Boulder, Colo. :},
      year = {2009},
}