توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Gehör, S. (1994). The palaeoproterozoic iron-formations in central Lapland and Kainuu, Finland, with special reference to their depositional environment and metamorphism. Dept. of Geology, University of Oulu.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Gehör, Seppo. The Palaeoproterozoic Iron-formations in Central Lapland and Kainuu, Finland, with Special Reference to Their Depositional Environment and Metamorphism. Oulu: Dept. of Geology, University of Oulu, 1994.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Gehör, Seppo. The Palaeoproterozoic Iron-formations in Central Lapland and Kainuu, Finland, with Special Reference to Their Depositional Environment and Metamorphism. Dept. of Geology, University of Oulu, 1994.