Collective Defense in South East Asia: The Manila Treaty and Its Implications. Report by a Chatham House Study Group. London and New York: The Royal Institute of International Affairs, 1956. xiv, 197. Appendices, Maps. $2.25 (paper). - Southeast Asia in Perspective. By John Kerry King. New York: Macmillan, 1956. xx, 309. Notes, Chronology, Selected Reading List, Index. $5.00.