This software is available as part of the Microsoft Home Use Program which includes Office 2013 Pro Plus and Office 2011 for Mac.
Choose this option to receive a program code via the campus-wide Microsoft Campus Agreement. This code will give you access to purchase Office from Microsoft via the Campus Agreement's Home Use Program at a cost of $9.95.
Eligible customers are allowed to purchase a single license of either Office Professional Plus 2013 or Office for Mac 2011. See more about the Microsoft Home Use Program here.
This license does not expire as long as the campus-wide Microsoft Campus Agreement is renewed each year.