Gregg, Robert W. The United Nations system and its functions; selected readings, edited by Robert W. Gregg and Michael Barkun. - Princeton, N.J., Van Nostrand [1968] - Van Nostrand political science series . Bibliographical footnotes. LCCN: 68020917 Subjects--Corporate Names: United Nations. LC Class. No.: JX1977 / .G738 Dewey Class. No.: 341.13/08