Two studies on the Lacandones of Mexico / by Phillip Baer and William R. Merrifield ; photos. by Larry Jordan

Tikal : guia de las antiguas ruinas Mayas : con mapa / William R. Coe Tikal, a handbook of the ancient Maya ruins. Spanish

Latin American church growth / by William R. Read, Victor M. Monterroso [and] Harmon A. Johnson

Economic Integration in Central America / William R. Cline – Enrique Delgado