Nebraska Revised Statute 17-959
The council or board of trustees, as the case may be, shall levy annually a sufficient tax to maintain, operate, and extend any such cold storage or refrigeration plant and to provide for the payment of the interest on, and principal of, any bonds that may have been issued as herein provided.
Laws 1941, c. 24, § 3, p. 119;
C.S.Supp.,1941, § 17-803;
R.S.1943, § 17-959.