Lua APA (7ú heag.)

(1979). Engelbert. Teldec.

Lua i Stíl Chicago (17ú heag.)

Engelbert. Hamburg: Teldec, 1979.

Lua MLA (8ú heag.)

Engelbert. Teldec, 1979.

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