Wright Richard T. (2011). Environmental science: Toward a sustainable future. PHI Learning.
Citazione stile Chigago Style (17a edizione)Wright Richard T. Environmental Science: Toward a Sustainable Future. New Delhi: PHI Learning, 2011.
Citatione MLA (9a ed.)Wright Richard T. Environmental Science: Toward a Sustainable Future. PHI Learning, 2011.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.