Towards a system of social and demographic statistics   

 - New York :   United Nations,   1975. 
 - xiv, 187 p. ;    28 cm. 
 - Studies in methods, ser. F;   no. 18. [Document] - United Nations ; ST/ESA/STAT/ser.F/18  no. 18. .
<br/><br/>  "United Nations publication : Sales no. E.74.XVII.8." 
<br/><br/>Bibliography: p. 181-187. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Demography --Methodology.------<br/>Social indicators.--Methodology.------<br/>Time management surveys.--Methodology.------