Ball, Mary Margaret, 1909- The "Open" Commonwealth / by M. Ball. - Durham, N. C. : Duke Univ. Press, 1971. - xiv, 286 p. ; 24 cm. - Duke University Commonwealth-Studies Center ; no. 39. . Includes bibliographical references. ISBN: 0822302853 Subjects--Corporate Names: Commonwealth of Nations. Dewey Class. No.: 330.9171