(1999). Annual Report 1998: Iowa State University Extension. Leading Iowa into the 21st century.
Citazione stile Chigago Style (17a edizione)Annual Report 1998: Iowa State University Extension. Leading Iowa into the 21st Century. 1999.
Citatione MLA (9a ed.)Annual Report 1998: Iowa State University Extension. Leading Iowa into the 21st Century. 1999.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.