APA (7th ed.) Citation

叶芝. (2016). 当你老了. 云南人民出版社.

Chicago Style (17th ed.) Citation

叶芝. 当你老了. 云南人民出版社, 2016.

MLA (8th ed.) Citation

叶芝. 当你老了. 云南人民出版社, 2016.

Warning: These citations may not always be 100% accurate.