APA
(1949). Hand book for the improvement of textbooks and teaching materials as aids to international understanding. Paris, France: United Nations Educational, Scientific and Cultural Organization.
Chicago
1949. Hand book for the improvement of textbooks and teaching materials as aids to international understanding. Paris, France: United Nations Educational, Scientific and Cultural Organization.
Harvard
(1949). Hand book for the improvement of textbooks and teaching materials as aids to international understanding. Paris, France: United Nations Educational, Scientific and Cultural Organization.
MLA
Hand book for the improvement of textbooks and teaching materials as aids to international understanding. Paris, France: United Nations Educational, Scientific and Cultural Organization. 1949.
