TY  - BOOK
TI  - Teachers guide for peas and particles
SN  - 070175217
U1  - 507.37 PEA 
PY  - 1966///
CY  - New York
PB  - Webster Division, McGraw-Hill Book Company
KW  - Numeration
KW  - Study and teaching (Elementary)
KW  - Mathematics
ER  -