KOLEY, R. (2016). CONNECT WITH SCIENCE - BOOK 4. OXFORD UNIVERSITY PRESS.
Lua i Stíl Chicago (17ú heag.)KOLEY, RUBY. CONNECT WITH SCIENCE - BOOK 4. NEW DELHI: OXFORD UNIVERSITY PRESS, 2016.
Lua MLA (9ú heag.)KOLEY, RUBY. CONNECT WITH SCIENCE - BOOK 4. OXFORD UNIVERSITY PRESS, 2016.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.