Along with extensive searching of Penn State's online library catalog The CAT and OCLC's WorldCat, the sources listed below were used to compile the bibliography of Pennsylvania’s Agriculture and Rural Life, 1820-1945.
Links are to Penn State CAT records if there is no full text, or the full text is linked from the CAT record. When full text was not available via the CAT, links are to the full text in the HathiTrust catalog.
Agriculture in America, 1622-1860 : printed works in the collections of the American Philosophical Society, the Historical Society of Pennsylvania, the Library Company of Philadelphia. compiled by Andrea J. Tucher. New York : Garland, 1984. (Americana to 1860 ; v. 2)
Batten's agricultural directory: a directory of the agricultural press of the United States and Canada together with detailed reports of farm products and values by States and provinces. New York : George Batten company, advertising agents, 1908.
Bibliography of books and pamphlets on the history of agriculture in the United States, 1607-1967. by John T. Schlebecker. Santa Barbara, Calif. : American Bibliographical Center--Clio, 1969.
Cyclopedia of American agriculture; a popular survey of agricultural conditions, practices and ideals in the United States and Canada. ed. by L. H. Bailey. New York ; London : The Macmillan company, 1907-1911. 4v.
Dictionary catalog of the National Agricultural Library, 1862-1965. New York : Rowman and Littlefield, 1967-. 73v.
Heritage of American Agriculture: A Bibliography of Pre-1860 Imprints. compiled by Alan M. Fusonie. Beltsville MD: National Agricultural Library (U.S.) 1975. (Library List No. 98)
A history of dairy journalism in the United States, 1810-1950 by John T. Schlebecker and and Andrew W. Hopkins. University of Wisconsin Press. 1957.
History of fruit growing and handling in United States of America and Canada, 1860-1972. general coordinator, D. V. Fisher ; editor, W. H. Upshall ; prepared under auspices of the American Pomological Society. Kelowna, British Columbia : Regatta City Press, c1976.
List of periodicals currently received in the library of the U.S. Department of agriculture. Arranged by title and by subject. Prepared by Emma B. Hawks. Washington: Government Printing Office. 1909. (U.S. Department of Agriculture, Library. Bulletin no.75)
List of the Agricultural Periodicals of the United States and Canada. S. C. Stuntz and Emma B. Hawks. Washington, D. C.: U.S. Dept. of Agriculture, 1941. (Miscellaneous publication. United States Department of Agriculture; no. 398)
A partial index to animal husbandry literature. by Charles S. Plumb. Columbus, Ohio: The author, 1911.
Partial list of publications on dairying issued in the United States, 1900 to June 1923. comp. by Carrie B. Sherfy, librarian, Bureau of Animal Industry. Washington, 1923. (Bibliographical contributions. United States. Dept. of Agriculture. Library ; no. 6)
Pennsylvania agriculture and country life. by Stevenson Whitcomb Fletcher; illustrations by S.W. Fletcher, Jr. Harrisburg : Pennsylvania Historical and Museum Commission, 1950-1955. 2v.
The Philadelphia Society for Promoting Agriculture, 1785-1955. by Stevenson Whitcomb Fletcher. Philadelphia Society for Promoting Agriculture, 1959.