| ID | 024518 |
| Call Number | 341.2/ROV |
| Title Proper | First fifty years |
| Other Title Information | secretary-general in world politics 1920-1970 |
| Language | ENG |
| Author | Rovine, Arthur W |
| Publication | Leyden, A.W. Sijtholf, 1970. |
| Description | 498p.+ 24cm. |
| Classification Number | 341.2 |
| Key Words | World Politics, 1920-1970 ; United Nations - Secretary Generals - 1946-1970 ; League of Nations - Secretary Generals - 1920-1947 |