元斌编著. (2019). 方与圆：．，. 中国商务出版社.
Chicago Style (17th ed.) Citation元斌编著. 方与圆：．，. 中国商务出版社, 2019.
MLA (8th ed.) Citation元斌编著. 方与圆：．，. 中国商务出版社, 2019.
Warning: These citations may not always be 100% accurate.
APA (7th ed.) Citation