TY - BOOK AU - Stewart,Frank Henderson TI - Fundamentals of age-group systems SN - 0126701504 PY - 1977/// CY - New York PB - Academic Press KW - Age groups KW - Ethnology KW - Africa, Sub-Saharan KW - Indians of North America KW - Great Plains KW - Social life and customs KW - Ethonology N1 - Includes bibliographical references (p. 347-369) and index ER -