Hetherington, P. B. (1967). Mosaics. Hamlyn.
Lua i Stíl Chicago (17ú heag.)Hetherington, P. B. Mosaics. Hamlyn, 1967.
Lua MLA (8ú heag.)Hetherington, P. B. Mosaics. Hamlyn, 1967.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.