Graça Dias, M. (1997). Landscape's Architect: Manuel Graça Dias on Alvaro Siza. Artforum.
Lua i Stíl Chicago (17ú heag.)Graça Dias, Manuel. "Landscape's Architect: Manuel Graça Dias on Alvaro Siza." Artforum 1997.
Lua MLA (8ú heag.)Graça Dias, Manuel. "Landscape's Architect: Manuel Graça Dias on Alvaro Siza." Artforum, 1997.
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