APA (7th ed.) Citation

Cao, F., Chen, C., Zhang, C., & Xing, J. Risk identification and prevention of multi-level flood and typhoon prevention emergency drills. Elsevier.

Chicago Style (17th ed.) Citation

Cao, Feifeng, Changhui Chen, Conglin Zhang, and Jianwu Xing. Risk Identification and Prevention of Multi-level Flood and Typhoon Prevention Emergency Drills. Elsevier.

MLA (9th ed.) Citation

Cao, Feifeng, et al. Risk Identification and Prevention of Multi-level Flood and Typhoon Prevention Emergency Drills. Elsevier.

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