The economics machine : a study guide /
Tom Osborne & John Foreman
- 17th ed. 2007 edition
- Happy Valley , S. Aust . : Fossick Publishers , 2007
- 173 p. ; 30 cm . + 1 teacher's guide (172 p. ; 30 cm.)
1 teacher's guide : Teacher guide to : the economics machine : a study guide [by] Tom Osborne & John Foreman, 2006 ed.