Robert H. Winthrop: Dictionary of Concepts in Cultural Anthropology. Greenwood Press, New York 1991, ISBN 0-313-24280-1, S. 23 (englisch; Seitenansicht in der Google-Buchsuche); Zitat: „A relatively small and self-sufficient group, with subsistence based on some combination of hunting, gathering, and fishing, characterized by near equality or wealth, extensive reciprocity, and informal leadership.“
