RAY, S. (2014). OUR EARTH: A BOOK OF GEOGRAPHY - 5. FRANK EDUCATIONAL AIDS.
Lua i Stíl Chicago (17ú heag.)RAY, SUMITRA. OUR EARTH: A BOOK OF GEOGRAPHY - 5. FRANK EDUCATIONAL AIDS, 2014.
Lua MLA (9ú heag.)RAY, SUMITRA. OUR EARTH: A BOOK OF GEOGRAPHY - 5. FRANK EDUCATIONAL AIDS, 2014.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.