The ordinance or resolution ordering the holding of the election shall, prior to the date set for the election, be published pursuant to Section 6066 of the Government Code in a newspaper of general circulation printed and published in the county and designated by the board of supervisors for that purpose, and shall be posted in three of the most public places in the proposed district at least 10 days prior to the date set for the election. No other notice of the election need be given.