TY  - BOOK
TI  - Childcraft the how and why library volume 13: Mathemagic
SN  - 0716601826
U1  - 371.2 22nd edition
PY  - 1961///
CY  - New York
PB  - World Book childcraft International, Inc.
KW  - Education
N1  - Includes index
ER  -