MORRIS , N. (2000). CHILDREN,S FIRST BOOK OF SCIENCE. PARRAGON.
Chicago-čujuhus (17. p.)MORRIS , NEIL. CHILDREN,S FIRST BOOK OF SCIENCE. UK: PARRAGON, 2000.
MLA-čujuhus (9. p.)MORRIS , NEIL. CHILDREN,S FIRST BOOK OF SCIENCE. PARRAGON, 2000.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.