GAY, C. M. (1935). Mechanical and Electrical Equipment for Buildings. John Wiley & Sons.
Lua i Stíl Chicago (17ú heag.)GAY, Charles Merrick. Mechanical and Electrical Equipment for Buildings. John Wiley & Sons, 1935.
Lua MLA (8ú heag.)GAY, Charles Merrick. Mechanical and Electrical Equipment for Buildings. John Wiley & Sons, 1935.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.