National Electrical Manufactures Association. (1997). Training manual on fire alarm systems.
Chicago-čujuhus (17. p.)National Electrical Manufactures Association. Training Manual on Fire Alarm Systems. New York, N.Y., National lectrical manufactures association, 1997.
MLA-čujuhus (9. p.)National Electrical Manufactures Association. Training Manual on Fire Alarm Systems. 1997.
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