Cross-cultural Contacts between Ryukyuans and Euro-Americans in the 19th century (1)－the language problem－ 論文 善彦 照屋・ヨシヒコ テルヤ・Yoshihiko Teruya ·2000-03-31 ·1(1) pp. 1-10 National Institute of Informatics doi:10.34415/00000678