Dyfyniad APA

Sloman, J. (2007). Economics (6th.). Published by: Pearson Education.

Dyfyniad Arddull Chicago

Sloman, John. Economics. 6th. Noida: Published by: Pearson Education, 2007.

Dyfyniad MLA

Sloman, John. Economics. 6th. Published by: Pearson Education, 2007.

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