Steadman, P. Vermeer and the problem of painting inside the camera obscura: Philip Steadman. Instrumente des Sehens.(2004).
Lua i Stíl Chicago (17ú heag.)Steadman, Philip. "Vermeer and the Problem of Painting Inside the Camera Obscura: Philip Steadman." Instrumente Des Sehens.(2004) .
Lua MLA (8ú heag.)Steadman, Philip. "Vermeer and the Problem of Painting Inside the Camera Obscura: Philip Steadman." Instrumente Des Sehens.(2004), .
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.