Political parties may provide for the selection of delegates to national conventions by the holding of a presidential preference primary or by popular election of the delegates or otherwise. In the event a presidential preference primary is called by the governing body of any party, notice of such action shall be given to the Secretary of State as part of the notice required by Section 17-13-46. The notice shall prescribe the procedure for the listing of the names of presidential candidates on the primary ballot and for the selection of delegates pledged under party rules to vote for the respective presidential candidates. A presidential preference primary, when called, shall appear in the first or top position on the primary ballot. When no presidential preference primary is to be utilized, delegates may be elected in the primary election in the same manner as other party officers; except, that subject to such rules and procedures as the respective political parties may adopt, any delegate candidate may be permitted to list opposite his or her name on the primary ballot the surname of the presidential candidate to whom he or she is pledged or the word "uncommitted." When delegates are to be so elected, the candidates for such position or positions shall appear in the first or top position on the primary ballot.