And neither of these differs from the 3rd Edition. They're just doing what every publisher does nowadays, bringing out bogus "new editions" with the slightest of cosmetic changes in order to rip off students by making their owned copies obsolete. We need laws to stop this practice and to stop publishers from bundling CDs, access codes and other useless stuff with textbooks and making students buy the whole package. Why aren't our universities protecting us from this, and where are the lawmakers?
We do not need laws against this. We need schools that refuse to buy from these companies. The textbook publishers, for sure, would not do this if they did not have assurance from state textbook committees that it would be just fine to waste the taxpayer's dollar on this nonsense.