Hargreaves, M. W. (1993). Dry farming in the northern Great Plains: Years of readjustment, 1920 - 1990. Univ. of Kansas Press.
Chicago-Zitierstil (17. Ausg.)Hargreaves, Mary W. Dry Farming in the Northern Great Plains: Years of Readjustment, 1920 - 1990. Lawrence: Univ. of Kansas Press, 1993.
MLA-Zitierstil (9. Ausg.)Hargreaves, Mary W. Dry Farming in the Northern Great Plains: Years of Readjustment, 1920 - 1990. Univ. of Kansas Press, 1993.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.