Pollock, I. L. (1923). The food administration in Iowa. State historical Society in Iowa.
Chicago-viite (17. p.)Pollock, Ivan Lester. The Food Administration in Iowa. Iowa City, Ia.: State historical Society in Iowa, 1923.
MLA-viite (8. p.)Pollock, Ivan Lester. The Food Administration in Iowa. State historical Society in Iowa, 1923.
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