How to print mailing labels for Contacts/Leads associated with a campaign.

How to print mailing labels for Contacts/Leads associated with a campaign.

Hi,
We have an event organized and want to send out invites to  some selected Leads and Contacts.
So we made a new Campaign, added the leads and contacts to it.
But now how do I print mailing labels of these selected people.

I cannot seem to create a report either, as I need to print the Company(Account) name for my Contacts, and that does not appear in the list of fields, even though the Account name is already a field in the Contacts module.

Please Help

Thanks,
Tejal