I have two text books I'd like to sell :

Investment Science by David Luenberger : $50

http://www.amazon.com/s/ref=nb_sb_ss_i_0_12?url=search-alias%3Dstripbooks&field-keywords=investment+science&sprefix=investment+s%2Cstripbooks%2C191&rh=n%3A283155%2Ck%3Ainvestment+science&ajr=2

Production and Operations Analysis by Steven Nahmias : $55

http://www.amazon.com/Production-Operations-Analysis-McGraw-Hill-Decision/dp/0073377856/ref=sr_1_1?s=books&ie=UTF8&qid=1345573575&sr=1-1&keywords=production+and+operations+analysis

Both the books are in awesome condition and are the latest versions. Pick em up from campus. If you take both, its a 100 bucks. :)

Email me and we can work it out!
Cheers