एपीए उद्धरण

Challen,Ray. (2000). Institutions transaction costs and environmental policy: Institutional reform for water resources. Edward Elgar.

शिकागो स्टाइल उद्धरण

Challen,Ray. Institutions Transaction Costs and Environmental Policy: Institutional Reform for Water Resources. U K: Edward Elgar, 2000.

एमएलए उद्धरण

Challen,Ray. Institutions Transaction Costs and Environmental Policy: Institutional Reform for Water Resources. Edward Elgar, 2000.