Child, H. (1988). Calligraphy today: Twentieth-century tradition and practice. A & C Black.
Lua i Stíl Chicago (17ú heag.)Child, Heather. Calligraphy Today: Twentieth-century Tradition and Practice. London: A & C Black, 1988.
Lua MLA (9ú heag.)Child, Heather. Calligraphy Today: Twentieth-century Tradition and Practice. A & C Black, 1988.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.