एपीए उद्धरण

Halfdanarson, G., & Isaacs, A. K. (2001). Nations and nationalities in historial perspective. Pisa: Edizioni Plus.

शिकागो स्टाइल उद्धरण

Halfdanarson, Gudmundur, और Ann Katherine Isaacs. Nations and Nationalities in Historial Perspective. Pisa: Edizioni Plus, 2001.

एमएलए उद्धरण

Halfdanarson, Gudmundur, और Ann Katherine Isaacs. Nations and Nationalities in Historial Perspective. Pisa: Edizioni Plus, 2001.