The Mountain Lion Contacts application has some printing options that you might not be familiar with. After you select Print… in the File menu, click on the Show Details button. There’s a Styles drop-down list, where you can select:
- Mailing Labels
- Envelopes
- Lists
- Pocket Address Book
Before you select Print… find the contact(s) you’d like to print. You can select All Contacts, a contact group, or an individual entry.