商志,心一主编. 考研英语（一）历年真题抢分精讲. 研究出版社.
Chicago Style (17th ed.) Citation商志,心一主编. 考研英语（一）历年真题抢分精讲. 研究出版社.
MLA (8th ed.) Citation商志,心一主编. 考研英语（一）历年真题抢分精讲. 研究出版社.
Warning: These citations may not always be 100% accurate.
APA (7th ed.) Citation