TY - BOOK TI - The world's chief languages : formerly, Languages for war and peace 3rd ed AU - Pei, Mario, 1901- PB - S.F. Vanni PP - New York : S.F. Vanni, [1946] PY - 1946 UR - https://library.korea.ac.kr/detail/?cid=CAT000000126157&ctype=m