Upon the implementation of the provisions of this chapter, should only two of the three counties of Berkeley, Dorchester, and Charleston have elected to participate by approval of the initial referendum, the governing body of the nonparticipating county may thereafter call a referendum in such county on the question of participation in the authority. After one referendum has been held under the provisions of this section, no more than one such referendum may thereafter be held within a two year period. The referendum question shall read as follows:

"Shall [insert name of county] join in the Trident Economic Development Finance Authority which shall have the power, among other things, with the approval of the governing bodies of Berkeley, Dorchester, and Charleston counties, to issue general obligation bonds for the purpose of promoting economic development in the area of the authority?