Geahča maid: Lithics and subsistence :
- The lithic artifacts of La Libertad, Chiapas, Mexico : an economic perspective /
- Analysis of the chipped stone artifacts of El Mirador, Guatemala /
- Some lithic assemblages of western Zacatecas and Durango, México /
- Piezas de arte mobiliar en la prehistoria de México /
- Tool... creator of civilization; the development of man as revealed by the discoveries of Dr. Raymond A. Dart /
- Handspindles /