Census of India,1961,Bihar : (Vol.4,Part2-B.1 General economic tables,tables B-1 to Biv & B-vii) 

 - New Delhi  Manager of publications  1965 
 - lxvi,677p. iv p. 
<br/><br/><label>Dewey Class. No.: </label>Y1:5s253:N61  / J1.2.B.1