APA (7 वां संस्करण) प्रशस्ति पत्र

Mathias, J. (2004). Regional interests in Europe: Wales and Saxony as modern regions. Frank Cass.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Mathias, Jörg. Regional Interests in Europe: Wales and Saxony as Modern Regions. London ; Portland, OR: Frank Cass, 2004.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Mathias, Jörg. Regional Interests in Europe: Wales and Saxony as Modern Regions. Frank Cass, 2004.