APA (7th ed.) Citation

于谦著. (2020). 于谦动物园. 浙江文艺出版社.

Chicago Style (17th ed.) Citation

于谦著. 于谦动物园. 浙江文艺出版社, 2020.

MLA (8th ed.) Citation

于谦著. 于谦动物园. 浙江文艺出版社, 2020.

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