Craig, John,  1935- <br/><br/>
Population density and concentration in Great Britain 1931, 1951 and 1961 / 
John Craig. 
 - London :  H.M.S.O.,  1975. 
 - 148p. 
 - Studies on medical and population subjects ;  no. 30 .
 - Studies on medical and population subjects ;  no. 30. .
<br/><br/> At head of title: Office of Population Censuses and Surveys. 
<br/><br/><label>ISBN: </label>0116905395 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Population density--Great Britain.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Great Britain--Population.