Lua APA (7ú heag.)

BLIJ, H. J. D., & MULLER, P. O. (1988). Geography: Regions and concepts.-- Ed.5. John Wiley and Sons.

Lua i Stíl Chicago (17ú heag.)

BLIJ, Harm J. De, agus Peter O. MULLER. Geography: Regions and Concepts.-- Ed.5. New York: John Wiley and Sons, 1988.

Lua MLA (9ú heag.)

BLIJ, Harm J. De, agus Peter O. MULLER. Geography: Regions and Concepts.-- Ed.5. John Wiley and Sons, 1988.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.