@article{article, title  = {{The Union Membership Wage-Premium Puzzle: Is There a Free Rider Problem?}},

 publisher = {{SAGE Publications}},

 url = {{}},

 year = {{2004}},

 month = {{4}},

 author = {{Booth AL and Bryan ML}},

 doi = {{10.1177/001979390405700305}},

 volume = {{57}},

 journal = {{ILR Review}},

 issue = {{3}},

 pages = {{402-421}},

 note = {{Accessed on 2024/12/22}}}