Among the ethnic groups dealt with by this comprehensive directory are Albanians, Armenians, blacks, Chinese, Danes, Filipinos, Germans, Greeks, Hungarians, Irish, Italians, Japanese, Jews, Koreans, Latvians, Lebanese, Lithuanians, Norwegians, Poles, Portuguese, Puerto Ricans, Russians, Scots, Serbs, Swiss, Turks, Ukranians, Vietnamese, and twenty-six others. An essay on the history of each group is followed by a listing of organizations linked with that group, including religious institutions, schools, political groups, cultural organizations, fraternal and charitable societies, and so forth. The directory is intended primarily as a resource guide for members of ethnic groups living in and around Philadelphia and the Delaware Valley. (Author/AM)