(1971). Long-Term planning. United Nations.
Chicago Style (17th ed.) CitationLong-Term Planning. New York: United Nations, 1971.
ציטוט MLALong-Term Planning. United Nations, 1971.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.
(1971). Long-Term planning. United Nations.
Chicago Style (17th ed.) CitationLong-Term Planning. New York: United Nations, 1971.
ציטוט MLALong-Term Planning. United Nations, 1971.