APA Цитирование

(1994). Operation and maintenance of Urban water supply and sanitation systems: A guide for managers. World Health Organisation.

Chicago-стиль цитирования

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

MLA-цитирование

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

Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.