(2000). Basic education at a distance. Routledge.
Chicago-čujuhus (17. p.)Basic Education at a Distance. Routledge, 2000.
MLA-čujuhus (9. p.)Basic Education at a Distance. Routledge, 2000.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.