American men of science : a biographical directory
edited by The Jaques Cattell Press
R.R. Bowker, 1970
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Sage biographical research
Goodwin, John, editor
Sage , 2012
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Lewes, George Henry
A Biographical History of Philosophy
Cambridge University Press, 2013
 eBooks
Directory of further education 1987/8
Hobsons Pub.,, 1987
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Kaplan, Louis
Laszlo moholy-Nagy : biographical writing
Duke Unipersity Press, 1995
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