For the purpose of financing and carrying out this grant or loan program, the county is granted the power and authority to borrow money and incur indebtedness and to evidence such borrowing or indebtedness by the issuance, at any time, and from time to time, of its general obligation serial maturity bonds, upon the full faith and credit of the county as provided for in section 56-13 or by the use of revenue bonds as provided for in section 56-14. (1974 L.M.C., ch. 8, § 1.)