TY  - BOOK
AU  - POSAMENTIER,Alfred S
AU  - Charles T.Salkind
TI  - Challenging Problems In Geometry 
SN  - 0-486-69154-3
U1  - 516. 
PY  - 1970///
CY  - New York
PB  - The Macmillan Company 
KW  - 0
KW  - Grade 10-12
ER  -