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(1968) A Mechanistic Explanation of The Physical Properties of Undisturbed Loess, February, 1968. Transportation, Department of
(1968) A Cartoon History of Iowa, 1968. University of Northern Iowa
(1968) Executive Order Number Eleven, February 1968. Governor's Office
(1968) Executive Order Number Ten, February 1968. Governor's Office
(1968) Inviting Iowa, Beautiful Land Between Two Great Rivers,1968. Iowa Economic Development Authority
(1968) Iowa Civil Rights Commission Annual Report, 1967-68. Civil Rights Commission
(1968) State of Iowa Transportation Map, 1968. Transportation, Department of
(1968) State of Iowa Transportation Map, 1968. Transportation, Department of
(1968) State of Iowa Transportation Map, 1968. Transportation, Department of
