Lua APA (7ú heag.)

(1987). The art of German drawing.

Lua i Stíl Chicago (17ú heag.)

The Art of German Drawing. London, 1987.

Lua MLA (8ú heag.)

The Art of German Drawing. 1987.

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