TY  - BOOK
AU  - Gordon V O
AU  -  Ivanov Y B
AU  -  Solntseva T E
TI  - Worked problems in descriptive geomtry
U1  - B6:5, L9 
PY  - 1979///
CY  - Moscow
PB  - Mir Publishers        
KW  - Geometry
ER  -