俞敏洪编著. (2012). 托福词组必备. 浙江教育出版社.
Chicago Style (17th ed.) Citation俞敏洪编著. 托福词组必备. 浙江教育出版社, 2012.
MLA (8th ed.) Citation俞敏洪编著. 托福词组必备. 浙江教育出版社, 2012.
Warning: These citations may not always be 100% accurate.
APA (7th ed.) Citation