What are MPS?

Some articles on mps:

Benny Bailey - Discography
... Bennie Bailey Plays (Argo 1959) Big Brass (Candid 1960) Soul Eyes - (MPS 1968) Folklore In Swing (MPS 1966) The Balkan In My Soul(MPS 1968) Soul Eyes ...
Argentine General Election, 2007 - Legislative Election Results
... of Deputies Front for Victory 78 MPs (+13), total 153 MPs Civic Coalition Confederation 19 MPs (+13), total 27 MPs Radical Civic Union 14 MPs (−7), total ...
List Of Progressive/United Farmer MPs
... The list does not include Liberal-Progressives, as these MPs sat with the Liberal caucus ... In the 1930s, most remaining Progressive/United Farmers MPs joined the Co-operative Commonwealth Federation ... See also List of Labour MPs (Canada), List of articles about CCF/NDP members ...