TY - BOOK AU - Hassan, Fekri A TI - Droughts, food, and culture : ecological change and food security in Africa's later prehistory SN - 9780306467554 SN - 200202221 U1 - 960.1 HAS PY - 2002/// CY - New York PB - Kluwer Academic/Plenum Publishers KW - Africa - Antiquities KW - Agriculture, Prehistoric - Africa KW - Climatic changes - Africa KW - Paleoclimatology - Africa KW - Prehistoric peoples - Food - Africa N1 - Includes bibliographical references and index ER -