एपीए उद्धरण

(2002). World resources 2002-2004 database: Decisions for the earth : balance, voice and power. Washington, D.C: World resources institute.

शिकागो स्टाइल उद्धरण

World Resources 2002-2004 Database: Decisions for the Earth : Balance, Voice and Power. Washington, D.C: World resources institute, 2002.

एमएलए उद्धरण

World Resources 2002-2004 Database: Decisions for the Earth : Balance, Voice and Power. Washington, D.C: World resources institute, 2002.