Røkkum, Arne. Nature, ritual, and society in Japan's Ryukyu Islands / Arne Røkkum. - London : Routledge, 2005. - xiii, 265p.: ill.; 24cm. - Japan anthropology workshop series . Includes bibliographical references and index. ISBN: 9780415355636 Subjects--Topical Terms: Ethnology--Ryukyu Islands. Subjects--Geographic Terms: Ryukyu Islands--Social life and customs.