APA (7th ed.) Zitazioa

(1999). Annual Report 1998: Iowa State University Extension. Leading Iowa into the 21st century.

Chicago Style (17th ed.) Zitazioa

Annual Report 1998: Iowa State University Extension. Leading Iowa into the 21st Century. 1999.

MLA (9th ed.) Zitazioa

Annual Report 1998: Iowa State University Extension. Leading Iowa into the 21st Century. 1999.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.