California Code, Government Code - GOV § 57142

(a) Each person who qualifies only as a registered voter of any city or registered voter district, regardless of the number of registered voters, is entitled to one ballot and one vote.

(b) Each person who qualifies only as a landowner-voter of any subject district, regardless of the number of landowner voters, is entitled to the number of ballots and votes authorized by the principal act for one such district; if there is more than one such district, that person upon declaration made to the precinct or election officers shall be furnished with a ballot or ballots for the particular district designated by that person.

(c) Each person who qualifies both as a registered voter and as a landowner-voter of any of the subject agencies, may at his or her option vote either as a registered voter or as a landowner-voter, but not both. That person, upon declaration made to the precinct or election officers, shall be furnished with a ballot or ballots for the particular city or district designated by that person.