TY  - BOOK
AU  - COXETER,H.S.M
TI  - THE REAL PROJECTIVE PLANE,3rd ed / 
U1  - 516.5 
PY  - 1992///
CY  - [S.N] : 
PB  - MC GRAW - HILL ، 
KW  - DATA PROCESSING
KW  - GEOMETRY PROJECTIVE
ER  -