Não informado. (2007). Report of the Division of the Agriculture. Iowa State College, Division of the Agriculture.
Cita Chicago Style (17a ed.)Não informado. Report of the Division of the Agriculture. Ames, Iowa: Iowa State College, Division of the Agriculture, 2007.
Cita MLA (8a ed.)Não informado. Report of the Division of the Agriculture. Iowa State College, Division of the Agriculture, 2007.
Precaución: Estas citas no son 100% exactas.