TY  - BOOK
AU  - Trentelman,John
AU  - Webster,Neil
TI  - Economics: theory and workbook 
SN  - NO ISBN
U1  - 330.994 
PY  - 1997///
CY  - Hapyy Valley , S.Aust.
PB  - Economics Teacher's Society of SA
KW  - Economics
KW  - Australia
KW  - Problems, exercises, etc
N1  - Accompanied by : Economics : theory and workbook : teacher's guide / J. Trentelman & N. Webster (138 p. ; 30 cm.), 1997
ER  -