Lua APA (7ú heag.)

(1998). Valuing the global environment: Actions & investments for a 21st century. Global Environment Facility.

Lua i Stíl Chicago (17ú heag.)

Valuing the Global Environment: Actions & Investments for a 21st Century. Washington, D.C.: Global Environment Facility, 1998.

Lua MLA (8ú heag.)

Valuing the Global Environment: Actions & Investments for a 21st Century. Global Environment Facility, 1998.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.