TY  - BOOK
T1  - Groundworks : algebraic thinking, grade 1, [teacher book]
A1  - Greenes, Carole E.
A2  - Findell, Carol R.
LA  - English
PP  - Chicago (Ill.)
PB  - Creative Publications
YR  - 1999
UL  - https://gei-testing-vufind.eww-server.de/Record/manes89264
SN  - 0762212055 ([teacher book])
SN  - 0762212934 (student workbook)
KW  - Matemáticas
KW  - Primaria
ER  -