TY  - BOOK
AU  - Yen 
AU  - Willard, Margaret
TI  - New century maths 12 : general HSC course 
SN  - 0170102734 
U1  - 510 YEN 2001 
PY  - 2001///
CY  - Australia
PB  - Thomson Nelson
KW  - Mathematics
N1  - Includes index p.498 - 500
ER  -