Challen, D.W. et al. Principles of Economics: Income, Wealth and Welfare in Australia By D.W. Challen et al. - Longman Cheshire 1985 - xiii, 397 pages, 25 cm. include index ISBN: 0-582-71487-7 Subjects--Personal Names: Subjects--Topical Terms: Economics.Australia-Economic Condition. Dewey Class. No.: 330.994 P93