Do you still have the Ebook version of Unit Operations in Chemical Engineering? You put a link up back in 2008 but that was along time ago and it doesnt work anymore. Would U happen to still have it somewhere? I have 5th ed Need 7th ed Unit Operations In Chemical Engineering By Warren L. McCabe, Julian C. Smith, Peter Harriott Publisher: McGraw-Hill Companies Number Of Pages: 1088 Publication Date: 1993-01-01 ISBN-10 / ASIN: 0070448442 ISBN-13 / EAN: 9780070448445