APA (7th ed.) Citation

Danhof, C. H. (1969). Change in agriculture: The northern United States, 1820-1870. Harvard University Press.

Chicago Style (17th ed.) Citation

Danhof, Clarence H. Change in Agriculture: The Northern United States, 1820-1870. Cambridge: Harvard University Press, 1969.

MLA (9th ed.) Citation

Danhof, Clarence H. Change in Agriculture: The Northern United States, 1820-1870. Harvard University Press, 1969.