Census of India 1961 <br/><br/>
Andhra Pradesh: village survey monographs, a monograph on Unagatla (Kovvur taluk, West Godavari district) 

 - Delhi  The Manager of Publications  1965 
 - 117+p. 
 - Census of India 1961. Volume II, Andhra Pradesh. Part VI. Serial No. 17 .
<br/><br/><label>Dewey Class. No.: </label>A81x54 In2/61/2/PT6/17