Shoppell, R. W. Latest descriptive price list of Shoppell's modern house designs. Co-operative Building Plan Association.
Lua i Stíl Chicago (17ú heag.)Shoppell, R. W. Latest Descriptive Price List of Shoppell's Modern House Designs. New York: Co-operative Building Plan Association.
Lua MLA (8ú heag.)Shoppell, R. W. Latest Descriptive Price List of Shoppell's Modern House Designs. Co-operative Building Plan Association.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.