TY  - BOOK
AU  - J. Murphy, Patricia
TI  - Back and forth
SN  - 9780516225524
AV  - QC133.5 
U1  - 531.32 
PY  - 2002///
CY  - Canada
PB  - Children
KW  - Non-fiction
KW  - Green bookshelf
KW  - Primary content area
KW  - Science
N1  - J
; 470

; Lexile
; J
; Raz-Plus

N2  - A simple introduction to back and forth movement
ER  -