What has the author DAVID BLOCK written?

Charles L. Blockson has written:

'African Americans in Pennsylvania' -- subject(s): African Americans, History, History, Local, Local History

'Black genealogy' -- subject(s): African Americans, Genealogy, Handbooks, manuals, Handbooks, manuals, etc

'A commented bibliography of one hundred and one influential books by and about people of African descent (1556-1982)' -- subject(s): African Americans, Bibliography

'The Underground Railroad in Pennsylvania' -- subject(s): Underground railroad, History

'Philadelphia's guide' -- subject(s): History, Guidebooks, African Americans, Historical markers

'Hippocrene guide to the underground railroad' -- subject(s): Guidebooks, Historic sites, Underground railroad, Fugitive slaves, History

'The Haitian Revolution'