Postle, M. V. (1999). The Artist's Model: From Etty to Spencer. Merrell Holberton.
Lua i Stíl Chicago (17ú heag.)Postle, Martin; Vaughan. The Artist's Model: From Etty to Spencer. London: Merrell Holberton, 1999.
Lua MLA (8ú heag.)Postle, Martin; Vaughan. The Artist's Model: From Etty to Spencer. Merrell Holberton, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.