MARSH, W. M., & GROSSA, J. (2002). Environmental geography: Science, land use, and earth systems.-- ed.2. John Wiley and Sons.
Lua i Stíl Chicago (17ú heag.)MARSH, William M., agus John GROSSA. Environmental Geography: Science, Land Use, and Earth Systems.-- Ed.2. New York: John Wiley and Sons, 2002.
Lua MLA (9ú heag.)MARSH, William M., agus John GROSSA. Environmental Geography: Science, Land Use, and Earth Systems.-- Ed.2. John Wiley and Sons, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.