Jones, L. Communicative grammar practice: Activities for intermediate students of english, students book (3a ed.).
芝加哥风格引文Jones, Leo. Communicative Grammar Practice: Activities for Intermediate Students of English, Students Book. 3a ed.
MLA引文Jones, Leo. Communicative Grammar Practice: Activities for Intermediate Students of English, Students Book. 3a ed.
警告：这些引文格式不一定是100％准确.