Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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

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