I, Y. (1985). Deutsche Sprache (Go-deung hag-gyo [Oberschule].). Daehanchulpangongsa.
Chicago Style (17th ed.) CitationI, Yu-yeong. Deutsche Sprache. Go-deung hag-gyo [Oberschule]. Seoul: Daehanchulpangongsa, 1985.
MLA (9th ed.) CitationI, Yu-yeong. Deutsche Sprache. Go-deung hag-gyo [Oberschule]. Daehanchulpangongsa, 1985.
Warning: These citations may not always be 100% accurate.