Early Childhood Matters. Bernard Van Leer Foundation.
Chicago-čujuhus (17. p.)Early Childhood Matters. NL: Bernard Van Leer Foundation.
MLA-čujuhus (9. p.)Early Childhood Matters. Bernard Van Leer Foundation.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.