俞敏洪编著. (2018). 六级词汇词根+联想记忆法：乱序版. 海豚出版社.
Chicago Style (17th ed.) Citation俞敏洪编著. 六级词汇词根+联想记忆法：乱序版. 海豚出版社, 2018.
MLA (8th ed.) Citation俞敏洪编著. 六级词汇词根+联想记忆法：乱序版. 海豚出版社, 2018.
Warning: These citations may not always be 100% accurate.
APA (7th ed.) Citation