एपीए उद्धरण

O'Nions, H. (2007). Minority rights protection in international law: The Roma of Europe. Ashgate.

शिकागो स्टाइल उद्धरण

O'Nions, Helen. Minority Rights Protection in International Law: The Roma of Europe. Aldershot: Ashgate, 2007.

एमएलए उद्धरण

O'Nions, Helen. Minority Rights Protection in International Law: The Roma of Europe. Ashgate, 2007.