Field, B. C. (2001). Natural resource economics: An introduction/Barry C. Field. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Field, Barry C. Natural Resource Economics: An Introduction/Barry C. Field. McGraw-Hill, 2001.
Lua MLA (8ú heag.)Field, Barry C. Natural Resource Economics: An Introduction/Barry C. Field. McGraw-Hill, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.