(1955). The Teaching of Modern Languages. Paris: Unesco.
Trích dẫn kiểu ChicagoThe Teaching of Modern Languages. Paris: Unesco, 1955.
ציטוט MLAThe Teaching of Modern Languages. Paris: Unesco, 1955.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.
(1955). The Teaching of Modern Languages. Paris: Unesco.
Trích dẫn kiểu ChicagoThe Teaching of Modern Languages. Paris: Unesco, 1955.
ציטוט MLAThe Teaching of Modern Languages. Paris: Unesco, 1955.