TY  - BOOK
AU  - Heng , Hwa Heng
TI  - Elementary Mathematics 
SN  - 9812238743
U1  - 510 HEN 
PY  - 1999///
CY  - London
PB  - Longman Science & Technology
KW  - Humanities & Natural Science
KW  - Mathematics
N1  - Includes Answers
ER  -