1. Intratribal genetic differentiation among the Yanomama Indians of southern Venezuela.
2. 1971 Anthropometric studies in Latin American Indian populations. In: The Ongoing Evolution of Latin American Populations. ed. Charles C Thomas, Springfield, pp. 333-404.
3. Departamento;Da Rocha,1971
4. 1971 Blood group polymorphisms in Venezuelan Indians. In: The Ongoing Evolution of Latin American Populations. ed. Charles C Thomas, Springfield, pp. 617-629.