TY  - BOOK
AU  - LENCHNER,George
TI  - Math Olympiad : Contest Problems: : for Elementary and Middle Schools 
SN  - 0-962662-1-1
U1  - 510. 
PY  - 1999///
CY  - New York
PB  - Glenwood Publications
KW  - 0
KW  - Grade 10-12
ER  -