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1Foilsithe / Cruthaithe 2011Available for University of the Philippines System via Cambridge Books Online. Click here to access
Electronic Resource -
2de réir Joas, Hans 1948-Available for University of the Philippines System via Cambridge Books Online. Click here to access
Foilsithe / Cruthaithe 2009
Electronic Resource -
3de réir Mouzelis, Nicos P.Available for University of the Philippines System via Cambridge Books Online. Click here to access
Foilsithe / Cruthaithe 2008
Electronic Resource