Citazione Stile APA (7a Edizione)
Hammond, A. L. Which World?: Scenarios for the 21st Century : Global Destinies, Regional Choices. Island : World Resources Institute.
Citazione stile Chigago Style (17a edizione)
Hammond, Allen L. Which World?: Scenarios for the 21st Century : Global Destinies, Regional Choices. Washington, EUA: Island : World Resources Institute.
Citatione MLA (9a ed.)
Hammond, Allen L. Which World?: Scenarios for the 21st Century : Global Destinies, Regional Choices. Island : World Resources Institute.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.