(1955). The Teaching of Modern Languages. Paris: Unesco.
シカゴスタイル引用形The Teaching of Modern Languages. Paris: Unesco, 1955.
MLA引用形式The Teaching of Modern Languages. Paris: Unesco, 1955.
警告: この引用は必ずしも正確ではありません.
(1955). The Teaching of Modern Languages. Paris: Unesco.
シカゴスタイル引用形The Teaching of Modern Languages. Paris: Unesco, 1955.
MLA引用形式The Teaching of Modern Languages. Paris: Unesco, 1955.