Dennis, Norman. <br/><br/>
Coal is our life :  an analysis of a Yorkshire mining community / 
Norman Dennis, Fernando Henriques, Clifford Slaughter. 
 - 2nd ed. 
 - London :  Tavistock Publications,  1969. 
 - Social science paperbacks ;  50 .
<br/><br/> Previous ed.: 1956. 
<br/><br/><label>ISBN: </label>0422725803 9780422725804