APA (7e ed.) Bronvermelding

World Health Organization. (1994). Operation and Maintenance of Urban Water Supply and Sanitation Systems: A guide for managers. World Health Organization.

Chicago (17e ed.) Bronvermelding

World Health Organization. Operation and Maintenance of Urban Water Supply and Sanitation Systems: A Guide for Managers. Switzerland: World Health Organization, 1994.

MLA (9e ed.) Bronvermelding

World Health Organization. Operation and Maintenance of Urban Water Supply and Sanitation Systems: A Guide for Managers. World Health Organization, 1994.

Let op: Deze citaties zijn niet altijd 100% accuraat.