TY  - BOOK
TI  - Common core mathematics: a story of ratios
T2  - Common Core series
SN  - 9781118811078 (paperback)
U1  - 513.24071273 
PY  - 2013///
CY  - San Francisco, CA
PB  - Jossey-Bass
KW  - Ratio and proportion
KW  - Study and teaching (Secondary)
KW  - United States
ER  -