Any such city or cities aiding in the purchase of land for state parks, as provided for in sections 461A.28 and 461A.29 , may pay for the same out of the general fund, or may issue bonds for the payment of the same and levy a tax for the payment of such bonds and the interest thereon, in accordance with the provisions of law relating to general corporate purpose bonds of a city. [C27, 31, 35, §1822-a3; C39, § 1822.3; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §111.30 ] C93, §461A.30