Addition and subtraction a cognitive perspective

Bibliografski detalji
Daljnji autori:	Carpenter, Thomas P, eds, Moser, James M., eds, Romberg, Thomas A., eds
Format:	Knjiga
Jezik:	English
Izdano:	Hillsdale, NJ Lawrence Earlbaum Associates c1982.
Teme:	Addition. Subtraction. Mathematical ability > Testing.