[Classweb-users] uncorrect span for 'Human-machine systems'

[Zbigniew Zakrzewski]

<snip>

Human-machine systems   (May Subd Geog)   
[TA167 (Engineering)] 
[T29.7-59.77 (Industrial engineering)] 
UF  Human operators (Systems engineering) 
  Human subsystems (Systems engineering) 
  Man-machine control systems 
  Man-machine systems [Former heading] 
  Operator-machine systems 
BT  Engineering systems 
  Human engineering 
NT  Control rooms 
  User interfaces (Computer systems) 

</snip>

I think instead of 'T29.7-59.77 (Industrial engineering)' should be:
T59.7-59.77

Zbigniew Zakrzewski
Biblioteka Uniwersytecka w Warszawie