Beard Roger. (2009). Sage Handbook of Writing Development. Sage.
Chicago-čujuhus (17. p.)Beard Roger. Sage Handbook of Writing Development. LONDON: Sage, 2009.
MLA-čujuhus (9. p.)Beard Roger. Sage Handbook of Writing Development. Sage, 2009.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.