Each voter’s pamphlet prepared pursuant to Section 13307 shall contain a statement in the heading of the first page in heavy-faced gothic type, not smaller than 10-point, that: (a), the pamphlet does not contain a complete list of candidates and that a complete list of candidates appears on the sample ballot (if any candidate is not listed in the pamphlet), and that (b), each candidate’s statement in the pamphlet is volunteered by the candidate, and (if printed at the candidate’s expense) is printed at his or her expense.