The proposition of altering legislative districts shall be printed on the ballots substantially as follows:

“Shall members of the legislative body of the City of ____ be elected by (or from) districts described in Ordinance No. ____?”

or, if applicable:

“Shall members of the legislative body of the City of ____ be elected by (or from) districts described in Ordinance No. ____, and the Mayor of the City of ____ be elected on a citywide basis by the voters of the entire city?”

followed by the words “Yes” and “No,” so printed that the voters may express their choice.