American Institute of Steel Construction. (1970). Manual of steel construction (7th ed.). National Book Store.
Lua i Stíl Chicago (17ú heag.)American Institute of Steel Construction. Manual of Steel Construction. 7th ed. Manila: National Book Store, 1970.
Lua MLA (9ú heag.)American Institute of Steel Construction. Manual of Steel Construction. 7th ed. National Book Store, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.