Competitive Analysis PDF or a ebook is a good variant for a student. Personally I bought hardcover, but a friend of mine also purchased a kindle version (and was pretty happy with it). Michael E. Porter is a great writer!
Margaret WildeWashington
Got a PDF version of Competitive Analysis - now I want a hardcopy! Michael E. Porter you are the best. Simply.
Johnny D. RitzBerkeley
I guess Competitive Analysis for sure is a great book - Michael E. Porter perfectly explained everything