Whenever the legal voters of any Township Park District or Pleasure Driveway and Park District, equal in number to ten per cent of the number of electors voting at the last preceding election held in the district, petition the board thereof to submit the question whether the park district shall reorganize as a General Park District under this Code, the secretary of the board shall certify this question to the appropriate election authorities who shall conduct a referendum on said question in accordance with the general election law. Such petition shall be filed with the secretary of said board in accordance with provisions of general election law.
70 ILCS 1205/2-20