TY  - BOOK
AU  - Beaychamp,Wilbur L.; Mayfield John C.; Hurd,Paul DeHart
TI  - Science problem I
SN  - 10786
U1  - 507 B38s 
CY  - Chicago
PB  - Scott, foresman and Company
KW  - Science
N1  - Science Word / Index
ER  -