APA引文

(1994). Operation and maintenance of water supply and sanitaion systems: Case studies. Genava: World Health Organization (WHO).

Trích dẫn kiểu Chicago

Operation and Maintenance of Water Supply and Sanitaion Systems: Case Studies. Genava: World Health Organization (WHO), 1994.

MLA引文

Operation and Maintenance of Water Supply and Sanitaion Systems: Case Studies. Genava: World Health Organization (WHO), 1994.

警告：這些引文格式不一定是100％准確.