File:Supply and demand.gif
Supply_and_demand.gif (350 × 332 pixels, file size: 12 KB, MIME type: image/gif)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 17:10, 28 January 2011 | 350 × 332 (12 KB) | DeborahMa (talk | contribs) |
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