SPENCER, J., & THOMAS, W. (1978). Introducing cultural geography.-- Ed.2. John Wiley and Sons.
Lua i Stíl Chicago (17ú heag.)SPENCER, J.E, agus W.L THOMAS. Introducing Cultural Geography.-- Ed.2. New York: John Wiley and Sons, 1978.
Lua MLA (9ú heag.)SPENCER, J.E, agus W.L THOMAS. Introducing Cultural Geography.-- Ed.2. John Wiley and Sons, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.