Helmut de Terra, 1900–1981 Helmut de Terra, 1900–1981v. 47No. 4793–794Stewart, T. Dale. 1982. "Helmut de Terra, 1900–1981." American Antiquity, 47, (4) 793–794.More...ID: 93962Type: articleKeywords: NMNH; Annals; NH-Anthropology