When should we buy books?

Student Lounge College Life
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<p>[TextbooksRus</a> Marketplace: Elementary Differential Equations](<a href=“http://www.textbooksrus.com/search/bookdetail/mkt/mkdetail.aspx?isbn=047003940X]TextbooksRus”>http://www.textbooksrus.com/search/bookdetail/mkt/mkdetail.aspx?isbn=047003940X)</p>

<p>Is that the book? I see what you mean though about Chem books. Those can be tough to get at a reasonable price.</p>

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<p>You know, I should know that because I’m a longtime forum user, but on that forum I would press the button and it would give me the brackets, but I forgot because I quit doing that hobby. Thanks for reminding me!</p>