KOLEY, R. (2016). CONNECT WITH SCIENCE - BOOK 4. OXFORD UNIVERSITY PRESS.
Chicago-čujuhus (17. p.)KOLEY, RUBY. CONNECT WITH SCIENCE - BOOK 4. NEW DELHI: OXFORD UNIVERSITY PRESS, 2016.
MLA-čujuhus (9. p.)KOLEY, RUBY. CONNECT WITH SCIENCE - BOOK 4. OXFORD UNIVERSITY PRESS, 2016.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.