AU  - Ratti,J.S..
TI  - College Algebra And Trigonometry / 
SN  - 0 02 398530 5
U1  - 512.3 
PY  - 1978///
CY  - New York
PB  - Macmillan Publishing co. Inc , 
KW  - Mathematics
N1  - NULL
ER  -