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its
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skovinsky
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its
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I'm reading this ISBN off the back of my OG 12th edition:

978-0-470-44974-5

I hope this helps.

EDIT: just saw your post. Get the one that is cheaper then, that's the same one I have "ISBN ends in just the number -5" and it is the same one everybody else has too.
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Does GMAC publish new OG edition every year? When can we expect OG13?

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