Lua APA (7ú heag.)

NEWSON, M., & HANWELL, J. (1982). Systematic physical geography. Macmillan Education Limited.

Lua i Stíl Chicago (17ú heag.)

NEWSON, Malcolm, agus James HANWELL. Systematic Physical Geography. Houndmills: Macmillan Education Limited, 1982.

Lua MLA (9ú heag.)

NEWSON, Malcolm, agus James HANWELL. Systematic Physical Geography. Macmillan Education Limited, 1982.

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