PREPARING. Preparing for the TOEFL: Essential vocabulary 1. Language Center.
芝加哥风格引文PREPARING. Preparing for the TOEFL: Essential Vocabulary 1. Surakarta: Language Center.
MLA引文PREPARING. Preparing for the TOEFL: Essential Vocabulary 1. Language Center.
警告：这些引文格式不一定是100％准确.