APA (7th ed.) Citation

于德琴 & 孙淑萍. (2010). 数独解法全知道. 中国工人出版社.

Chicago Style (17th ed.) Citation

于德琴 and 孙淑萍. 数独解法全知道. 中国工人出版社, 2010.

MLA (8th ed.) Citation

于德琴 and 孙淑萍. 数独解法全知道. 中国工人出版社, 2010.