Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (8a ed.)

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