Gibson, R. (1992). Trabalhos com plasticina. Desabrochar.
Lua i Stíl Chicago (17ú heag.)Gibson, Ray. Trabalhos Com Plasticina. Desabrochar, 1992.
Lua MLA (8ú heag.)Gibson, Ray. Trabalhos Com Plasticina. Desabrochar, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.