<p>At the student store they sell the used workbook Wolfson Edition for $38.75 and new $51.50 but if its used and has writing, how do I turn in the pages from it? Also, is the workbook actually needed for lab/discussion or can i get away with just the masteringphysics access card and textbook and save some moolah?</p>
<p>oh and its for Fajans.</p>