Dyfyniad APA

Mc Eachern William. (2014). Economics: A Contemporary Introduction (10th.). Cengage Learning.

Dyfyniad Arddull Chicago

Mc Eachern William. Economics: A Contemporary Introduction. 10th. Australia: Cengage Learning, 2014.

Dyfyniad MLA

Mc Eachern William. Economics: A Contemporary Introduction. 10th. Cengage Learning, 2014.

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