TY  - BOOK
AU  - Lass,Harry, x
AU  - x
TI  - Elements  of  pure  and  applied   mathmatics: x
SN  - x
U1  - 510/LAE 
PY  - 1957///
CY  - N. Y.
PB  - Mcgraw- Hill
KW  - Mathematics
ER  -