LEWIS BERNARD T. (1980). MAINTENANCE MANAGEMENT. D B TARAPOREVALA.
Lua i Stíl Chicago (17ú heag.)LEWIS BERNARD T. MAINTENANCE MANAGEMENT. BOMBAY: D B TARAPOREVALA, 1980.
Lua MLA (9ú heag.)LEWIS BERNARD T. MAINTENANCE MANAGEMENT. D B TARAPOREVALA, 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.