directions, first and second: firstly directions for inhibition of wrong use: secondly directions for right employment of primary control

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73
Title (HTML): 
directions, first and second: firstly directions for inhibition of wrong use: secondly directions for right employment of primary control
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Library text: 
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UoSCorrections1
Main entry: 
directions, first and second
Sub entry: 
firstly directions for inhibition of wrong use
Sub sub entry: 
secondly directions for right employment of primary control