21. Readings in rural sociology Creator: Phelan, John, 1879- Collection: Core Historical Literature of Agriculture Publisher: Macmillan, Publication Place: New York : Date: 1920 Format: Book
22. A manual of the timbers of the world: their characteristics and uses : to which is appended an account by S. Fitzgerald of the artificial seasoning of timber. Creator: Howard, Alexander Liddon, 1863-1946. Collection: Core Historical Literature of Agriculture Publisher: Macmillan, Publication Place: London : Date: 1920 Format: Book
23. West African forests and forestry Creator: Unwin, Arthur Harold. Collection: Core Historical Literature of Agriculture Publisher: T.F. Unwin, ltd., Publication Place: London : Date: 1920 Format: Book
24. The effect of certain agents on the development of some moulds Creator: Bitting, K. G. 1869-1937. Collection: Core Historical Literature of Agriculture Publisher: National Capital Press, Publication Place: [Wash., D.C. : Date: 1920 Format: Book
25. The butter industry: prepared for the use of creameries, dairy students and pure food departments Creator: Hunziker, Otto Frederick, b. 1873. Collection: Core Historical Literature of Agriculture Publisher: Otto F. Hunziker, Publication Place: La Grange, Ill. : Date: 1920 Format: Book
26. The practice of lubrication: an engineering treatise on the origin, nature and testing of lubricants, their selection, application and use Creator: Thomsen, T. C. Collection: Core Historical Literature of Agriculture Publisher: McGraw-Hill, Publication Place: New York : Date: 1920 Format: Book
27. The farmers' union Creator: Fisher, Commodore B. Collection: Core Historical Literature of Agriculture Publisher: Univ. of Kentucky, Publication Place: Lexington, Ky. : Date: 1920 Format: Book
28. Insects and human welfare: an account of the more important relations of insects to the health of man, to agriculture, and to forestry Creator: Brues, Charles T. 1879-1955. Collection: Core Historical Literature of Agriculture Publisher: Harvard University Press, Publication Place: Cambridge : Date: 1920 Format: Book
29. A handbook of hardy fruits more commonly grown in Great Britain: apples and pears Creator: Bunyard, Edward A. Collection: Core Historical Literature of Agriculture Publisher: J. Murray, Publication Place: London : Date: 1920 Format: Book
30. Productive small fruit culture: a discussion of the growing, harvesting, and marketing of strawberries, raspberries, blackberries, currants, gooseberries and grapes Creator: Sears, Fred Coleman, 1866- Collection: Core Historical Literature of Agriculture Publisher: J. B. Lippincott Company, Publication Place: London : Date: 1920 Format: Book