Mary Jones; Diane Fellowes-Freeman; David Sang. (2012). Cambridge Checkpoint Science Workbook 8 (Cambridge International Examinations) (Workbook.). CAMBRIDGE UNIVERSITY PRESS.
Lua i Stíl Chicago (17ú heag.)Mary Jones; Diane Fellowes-Freeman; David Sang. Cambridge Checkpoint Science Workbook 8 (Cambridge International Examinations). Workbook. CAMBRIDGE UNIVERSITY PRESS, 2012.
Lua MLA (9ú heag.)Mary Jones; Diane Fellowes-Freeman; David Sang. Cambridge Checkpoint Science Workbook 8 (Cambridge International Examinations). Workbook. CAMBRIDGE UNIVERSITY PRESS, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.