Lua APA (7ú heag.)

STEELE, H. (1998). GEOLOGY AND CHANGE. TIME LIFE PUBLICATIONS.

Lua i Stíl Chicago (17ú heag.)

STEELE, HOPE. GEOLOGY AND CHANGE. ASIA: TIME LIFE PUBLICATIONS, 1998.

Lua MLA (9ú heag.)

STEELE, HOPE. GEOLOGY AND CHANGE. TIME LIFE PUBLICATIONS, 1998.

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