Question unanswerable as asked. Depends on how you created the list.
If you created it manually, then you make the changes manually, googling
for the APA citation rules first.
If you used the new feature in Word 2007 to create the list, and now you
want to change it, then first look in Help to see if it tells you. If it
doesn't, then when you post back, you'll need to give OS and Word
version numbers, say what you did to create the list, and what you have
tried to convert it. Then you might have a chance of getting help.
