Lua APA (7ú heag.)

Melbo, I. R. (1950). Our country's national parks (Mid-century ed.). Bobbs-Merrill.

Lua i Stíl Chicago (17ú heag.)

Melbo, Irving R. Our Country's National Parks. Mid-century ed. Indianapolis: Bobbs-Merrill, 1950.

Lua MLA (8ú heag.)

Melbo, Irving R. Our Country's National Parks. Mid-century ed. Bobbs-Merrill, 1950.

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