任惠莲. (2009). 英语国家概况精要问答: Highlights of a survey of English speaking countries questions & answers. 西安出版社.
Chicago (17e ed.) Bronvermelding任惠莲. 英语国家概况精要问答: Highlights of a Survey of English Speaking Countries Questions & Answers. 西安出版社, 2009.
MLA (8e ed.) Bronvermelding任惠莲. 英语国家概况精要问答: Highlights of a Survey of English Speaking Countries Questions & Answers. 西安出版社, 2009.
Let op: Deze citaties zijn niet altijd 100% accuraat.