La inoperancia del escalafon en el regimen laboral de los trabajadores del S.T.C. Metro
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| Format: | Tesis de licenciatura |
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MX
1991
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| Online Access: | https://hdl.handle.net/20.500.14330/TES01000170372 http://132.248.9.195/pmig2016/0170372/Index.html |