CASSIDY, J., ROETTGER, D., & WIXSON, K. K. (1987). Climb the hills. Scribner Educational Publishers.
Lua i Stíl Chicago (17ú heag.)CASSIDY, Jack, Doris ROETTGER, agus Karen K. WIXSON. Climb the Hills. New York: Scribner Educational Publishers, 1987.
Lua MLA (9ú heag.)CASSIDY, Jack, et al. Climb the Hills. Scribner Educational Publishers, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.