Lua APA (7ú heag.)
Clarke, K. C., & Parks, B. O. (2004). Geographic information systems and environmental modeling. Prentice Hall of India.
Lua i Stíl Chicago (17ú heag.)
Clarke, Keith C., agus Bradley O/Crane Parks. Geographic Information Systems and Environmental Modeling. New Delhi: Prentice Hall of India, 2004.
Lua MLA (9ú heag.)
Clarke, Keith C., agus Bradley O/Crane Parks. Geographic Information Systems and Environmental Modeling. Prentice Hall of India, 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.