What has the author DAVID BLOCK written?

Answer 1

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'

Answer 2

Seymour S. Block has written:

'Sudoku and magic squares' -- subject(s): Sudoku, Magic squares, Mathematical recreations

Answer 3

Geoffrey W. Jackson has written:

'Tuvaluan dictionary'

Answer 4

DAVID BLOCK has written:

'SECOND LANGUAGE IDENTITIES'

'SOCIAL TURN IN SECOND LANGUAGE ACQUISITION'

Answer 5

Geoffrey D. M Block has written:

'Greater London government' -- subject(s): Politics and government

Answer 6

David Block is a science writer who has written books on topics such as astronomy, physics, and space exploration. He has authored books like "Is the Universe a Hologram?" and "The Infinite Cosmos."