HOPKINSON, R., & HOPKINSON, R. (1972). The Lighting Of Buildings Oleh Rg Hopkinson & J.d. Kay. Faber and Faber.
Lua i Stíl Chicago (17ú heag.)HOPKINSON, RG, agus RG HOPKINSON. The Lighting Of Buildings Oleh Rg Hopkinson & J.d. Kay. Faber and Faber, 1972.
Lua MLA (8ú heag.)HOPKINSON, RG, agus RG HOPKINSON. The Lighting Of Buildings Oleh Rg Hopkinson & J.d. Kay. Faber and Faber, 1972.
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