comments for week 6

https://www.blogger.com/comment.g?blogID=2367464305070960355&postID=8005026610625976701

http://leblancsatpittsburgh.blogspot.com/2008/09/reading-notes-for-week-6-sept-30.html

http://pittmlis.blogspot.com/2008/09/reading-assignment-6.html