TY  - BOOK
AU  - Antonov N
AU  -  Nikitin V
AU  -  Sankin A
AU  -  Vygodsky M
TI  - Problems in Eelementary mathematics for home study
U1  - B, M2 
PY  - 1982///
CY  - Mosco
PB  - Mir Publishers        
KW  - Mathematics
ER  -