KIRK, S. J. (1995). Life Cycle Costing For Design Professionals Stephen J. Kirk, Alphonse J. Dell Sola. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)KIRK, Stephen J. Life Cycle Costing For Design Professionals Stephen J. Kirk, Alphonse J. Dell Sola. McGraw-Hill, 1995.
Lua MLA (8ú heag.)KIRK, Stephen J. Life Cycle Costing For Design Professionals Stephen J. Kirk, Alphonse J. Dell Sola. McGraw-Hill, 1995.
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