APA (7th ed.) Citation

(1949). 3 years I.U.S.Y. 1946-1949. Press and information bureau of the International union of socialist youth.

Chicago Style (17th ed.) Citation

3 Years I.U.S.Y. 1946-1949. Press and information bureau of the International union of socialist youth, 1949.

MLA (8th ed.) Citation

3 Years I.U.S.Y. 1946-1949. Press and information bureau of the International union of socialist youth, 1949.

Warning: These citations may not always be 100% accurate.