Smith, L. M. (2003). Playas of the Great Plains. University of Texas Press.
Dyfyniad Arddull ChicagoSmith, Loren M. Playas of the Great Plains. Austin: University of Texas Press, 2003.
Dyfyniad MLASmith, Loren M. Playas of the Great Plains. University of Texas Press, 2003.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.