Lua APA (7ú heag.)

Brain Training Puzzles Difficult Book 2. Carlton Pub.

Lua i Stíl Chicago (17ú heag.)

Brain Training Puzzles Difficult Book 2. London: Carlton Pub.

Lua MLA (9ú heag.)

Brain Training Puzzles Difficult Book 2. Carlton Pub.

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