Lua APA (7ú heag.)

(2003). Stepping Tones: Bd. 1.2.3 / Wilko Brouwers. Ward Centrum Nederland.

Lua i Stíl Chicago (17ú heag.)

Stepping Tones: Bd. 1.2.3 / Wilko Brouwers. ['s-Hertogenbosch]: Ward Centrum Nederland, 2003.

Lua MLA (8ú heag.)

Stepping Tones: Bd. 1.2.3 / Wilko Brouwers. Ward Centrum Nederland, 2003.

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