Mc Eachern William. (2014). Economics: A Contemporary Introduction (10th.). Cengage Learning.
Chicago-referens (17:e uppl.)Mc Eachern William. Economics: A Contemporary Introduction. 10th. Australia: Cengage Learning, 2014.
MLA-referens (9:e uppl.)Mc Eachern William. Economics: A Contemporary Introduction. 10th. Cengage Learning, 2014.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.