00000nam a2200000 a 4500 20251202164145.0 0043310656 331.137 CON G D N Worswick _ Concept and measurement of involuntary unemployment London Allen and Unwin 1976 327p. 22cm pB Unemployment -- Great Britain -- Congresses. Eng PUL 5726 C 1559 1559 0 0 0 0 PU PU 1998-04-08 0 331.137 CON 5726 BK