KRISHNA, P. (1978). Cable Suspended Roofs Prem Krishna. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)KRISHNA, Prem. Cable Suspended Roofs Prem Krishna. McGraw-Hill, 1978.
Lua MLA (8ú heag.)KRISHNA, Prem. Cable Suspended Roofs Prem Krishna. McGraw-Hill, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.