"Make address book entry" from email addresses in incoming message

I have what may be a very simple question. Say I receive an email in which I am one of many people getting the message - as in a message that has gone out to all 10 members of some committee of which I'm a member. I would like to make an entry in my personal address book for the Committee that would include all 10 addresses. Is there an easy way to do this besides (a) individually saving each of the addresses for the Committee members and (b) creating a new address book entry and (c) individually adding each of the 10 committee members? Thanks!