APA (7th ed.) Citation

李广田. (2021). 引力. 北京联合出版公司.

Chicago Style (17th ed.) Citation

李广田. 引力. 北京联合出版公司, 2021.

MLA (8th ed.) Citation

李广田. 引力. 北京联合出版公司, 2021.

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