21. Agricultural prices Creator: Wallace, Henry Agard, 1888-1965. Collection: Core Historical Literature of Agriculture Publisher: Wallace Publishing Company, Publication Place: Des Moines, Iowa : Date: 1920 Format: Book
22. The agricultural situation: economic effects of fluctuating prices Creator: Warren, George F. 1874-1938. Collection: Core Historical Literature of Agriculture Publisher: J. Wiley & Sons, Publication Place: New York : Date: 1924 Format: Book
23. American pork production in the world war Creator: Surface, Frank Macy, 1882- Collection: Core Historical Literature of Agriculture Publisher: A.W. Shaw Company, Publication Place: New York : Date: 1926 Format: Book
24. Agricultural economics Creator: O'Brien, George Augustine Thomas, 1892- Collection: Core Historical Literature of Agriculture Publisher: Longmans, Green and co., Publication Place: New York [etc.] : Date: 1929 Format: Book
25. Franklin D. Roosevelt Menu Collection: Political Americana Date: 1932 1932 Format: Image Caricaturist: Haworth Political Figure: Roosevelt, Franklin D., American (1882-1945), Presidential Candidate
26. Franklin D. Roosevelt Portrait Advertising Handbill Collection: Political Americana Date: ca. 1933-1934 Format: Image Image Producer: H.S.W. Political Figure: Roosevelt, Franklin D., American (1882-1945), President
27. Government price-fixing Creator: Backman, Jules, 1910- Collection: Core Historical Literature of Agriculture Publisher: Pitman Publishing Corporation, Publication Place: Chicago : Date: 1938 Format: Book
28. Agricultural price analysis Creator: Shepherd, Geoffrey Seddon, 1898- Collection: Core Historical Literature of Agriculture Publisher: The Iowa State College Press, Publication Place: Ames, Iowa : Date: 1941 Format: Book
29. Parity, parity, parity Creator: Black, John D. 1883-1960. Collection: Core Historical Literature of Agriculture Publisher: The Harvard Committee on Research in the Social Sciences, Publication Place: Cambridge, Mass. : Date: 1942 Format: Book
30. The theory of competitive price Creator: Stigler, George Joseph, 1911- Collection: Core Historical Literature of Agriculture Publisher: Macmillan, Publication Place: New York : Date: 1942 Format: Book