Hobson, A. The Oxford Dictionary Dificult Words. Oxford University.
Chicagoスタイル(17版)引用形式Hobson, Archie. The Oxford Dictionary Dificult Words. Oxford University.
MLA(9版)引用形式Hobson, Archie. The Oxford Dictionary Dificult Words. Oxford University.
警告: この引用は必ずしも正確ではありません.