//-->
Study of the initial involvement in the social services by the Puerto Rican migrants in Philadelphia
García Olivero, Carmen, (1971)
Puerto Rican population of New York City
Jaffe, Abram J., (1975)
The changing role of a political boss in a Puerto Rican migrant community
Rogler, Lloyd, (1974)
Puerto Ricans in Philadelphia
Siegel, Arthur, (1975)
Language, the press and political attitudes: the Canadian case
The contract state : the welfare state of the professional classes?
Orlans, Harold, (1980)