(1994). Mathematics teaching in the middle school. National Council of Teachers of Mathematics.
Chicago-čujuhus (17. p.)Mathematics Teaching in the Middle School. Reston, VA: National Council of Teachers of Mathematics, 1994.
MLA-čujuhus (9. p.)Mathematics Teaching in the Middle School. National Council of Teachers of Mathematics, 1994.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.