31. Seasonal farm labor in the United States: with special reference to hired workers in fruit and vegetable and sugar-beet production. Creator: Schwartz, Harry, 1919- Collection: Core Historical Literature of Agriculture Publisher: Columbia University Press, Publication Place: New York : Date: 1945 Format: Book
32. Conservation of national resources: an educational approach to the problem Creator: Renner, George T. 1900-1955. Collection: Core Historical Literature of Agriculture Publisher: Chapman & Hall, Limited, Publication Place: London : Date: 1942 Format: Book
33. Forgotten people: a study of New Mexicans Creator: SaÌnchez, George Isidore, 1906-1972. Collection: Core Historical Literature of Agriculture Publisher: The University of New Mexico Press, Publication Place: Albuquerque, N.M. : Date: 1940 Format: Book
34. Greenhouse construction: a complete manual on the building, heating, ventilating and arrangement of greenhouses, and the construction of hotbeds, frames and plant pits Creator: Taft, Levi Rawson. Collection: Core Historical Literature of Agriculture Publisher: Orange Judd Company, Publication Place: New York : Date: 1893 Format: Book
35. The biotic provinces of North America Creator: Dice, Lee Raymond, 1887- Collection: Core Historical Literature of Agriculture Publisher: University of Michigan Press, Publication Place: Ann Arbor : Date: 1943 Format: Book
36. Problems in soil microbiology Creator: Cutler, D. Ward Collection: Core Historical Literature of Agriculture Publisher: Longmans, Green and Co., Publication Place: New York : Date: 1935 Format: Book
37. Modern piseÌ-building: house-building with compressed or rammed earth (piseÌ de terre) : a revelation for the farmer and settler, and others Creator: Ellington, Karl Johan. Collection: Core Historical Literature of Agriculture Publisher: Bethany Printing Company, Publication Place: [Lindsborg, Kan. : Date: 1924 Format: Book
38. A living from the land Creator: Duryee, William Budington, 1888- Collection: Core Historical Literature of Agriculture Publisher: Whittlesey House, McGraw-Hill Book Company, Inc., Publication Place: London : Date: 1934 Format: Book
39. Friend earthworm: practical application of a lifetime study of habits of the most important animal in the world Creator: Oliver, George Sheffield. Collection: Core Historical Literature of Agriculture Publisher: Oliver's Earthworm Farm School, Publication Place: Oceanside, Calif. : Date: 1941 Format: Book
40. Lectures on plant pathology and physiology in relation to man: a series of lectures given at the Mayo Foundation and the universities of Minnesota, Iowa, Wisconsin, the Des Moines academy of medicine, Iowa, and Iowa State College, 1926-1927. Collection: Core Historical Literature of Agriculture Publisher: W. B. Saunders Company, Publication Place: London : Date: 1928 Format: Book
