Naidu, Mumulla Venkat Rao. Collective security and the United Nations : a definition of the UN security system / M. V. Naidu. - London : Macmillan, 1974. - xv, 164 p.; Includes index. ISBN: 0333178521 : Subjects--Topical Terms: Security, International. Dewey Class. No.: 341.72 / Co