Combining queries - Mailing list pgsql-novice

Hi.

If I have two queries:

SELECT pub_id as id, email FROM publication WHERE email_accepted = TRUE;

and

SELECT contact_id as id, email FROM person WHERE email_accepted = TRUE;

is there any way I could combine these into a single query? I'd like to be
able to create a view of all email-able entities in the system.

Thanks,

Mark