TY - BOOK AU - Schlippe, Pierre de, TI - Shifting cultivation in Africa: the Zande system of agriculture U1 - 630.966 PY - 1956///] CY - London PB - Routledge & Paul KW - Agriculture KW - Africa, Central KW - Zande (African people) N1 - Includes bibliographical references (p. [245]-291) ER -