APA-referens (7:e uppl.)
ebrary, Inc, Iglehart, C., & Zsofka, G. J. (2013). Farming and farmland in the United States: Changes and trends. Nova Science ; Gazelle [distributor].
Chicago-referens (17:e uppl.)
ebrary, Inc, Calvin Iglehart, och Grant J. Zsofka. Farming and Farmland in the United States: Changes and Trends. Hauppauge, N.Y. : Lancaster: Nova Science ; Gazelle [distributor], 2013.
MLA-referens (9:e uppl.)
ebrary, Inc, et al. Farming and Farmland in the United States: Changes and Trends. Nova Science ; Gazelle [distributor], 2013.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.