If the proposal to issue said bonds shall be approved, the board of trustees may issue such bonds in such form as the board may direct and shall give notice by publication in some newspaper published in the counties in which said district is located and in some newspaper of general circulation in the capital of this state of its intention to issue and negotiate such bonds, and to invite bidders therefor; provided that in no case shall such bonds be sold for less than their full or par value and the accrued interest thereon at the time of their delivery. And the said trustees are authorized to reject any bids, and to sell said bonds at private sale, if they deem it for the best interests of the district.
W.S. 35-2-417