Appendix B: The NBER Public Sector Collective Bargaining Law Data Set
    Published Date 
  
  
    Copyright 1988
  
  
    ISBN 0226261662
  
 
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      Copy CitationRobert Valletta and Richard B. Freeman, When Public Sector Workers Unionize (University of Chicago Press, 1988), https://www.nber.org/books-and-chapters/when-public-sector-workers-unionize/appendix-b-nber-public-sector-collective-bargaining-law-data-set.
 
 
     
    