The County Council shall advertise the bonds for sale in at least 2 issues in each of 2 newspapers, 1 of which shall be a newspaper of general circulation published in the City of Wilmington, and the other a newspaper of general circulation published in the City of New York, inviting bids for the bonds. The advertisements shall state the total amount of the proposed issue, the denominations of the bonds, the place of payment of the bonds and interest, the place and date of opening bids, and the conditions under which the bonds are to be sold. The County Council may give notice of the sale of the bonds in such other manner as it may decide. In addition, the County Council may authorize the County Executive to sell such bonds at public or private sale upon such terms, conditions and regulations as it may prescribe.