LEWIS BERNARD T. (1999). FACILITY MANAGER`S OPERATION AND MAINTENANCE HANDBOOK. MCGRAW-HILL.
Chicago Style aipamenaLEWIS BERNARD T. FACILITY MANAGER`S OPERATION AND MAINTENANCE HANDBOOK. NEW YORK: MCGRAW-HILL, 1999.
MLA aipamenaLEWIS BERNARD T. FACILITY MANAGER`S OPERATION AND MAINTENANCE HANDBOOK. MCGRAW-HILL, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.