http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Genel Tarımsal Pazarlama(Zirai Marketing ve Standardizasyon Ders Kit.)
Ank.Ünv.Zir.Fak.Yay. 311- Doç.Dr.Turan Güneş