English language services. (1966). The key to English; T1: Prepositions. London: Collier-MacMillan.
シカゴスタイル引用形English language services. The Key to English; T1: Prepositions. London: Collier-MacMillan, 1966.
MLA引用形式English language services. The Key to English; T1: Prepositions. London: Collier-MacMillan, 1966.
警告: この引用は必ずしも正確ではありません.