Lua APA (7ú heag.)

Koch, H. (1937). Caspar Vopelius: Kartograph in Köln 1511-1561. Vopelius.

Lua i Stíl Chicago (17ú heag.)

Koch, Herbert. Caspar Vopelius: Kartograph in Köln 1511-1561. Jena: Vopelius, 1937.

Lua MLA (8ú heag.)

Koch, Herbert. Caspar Vopelius: Kartograph in Köln 1511-1561. Vopelius, 1937.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.