Research Data Bank of Development Indicators.  Vol. IV, Notes on the indicators.  Vol. IV, Notes on the indicators. 

 - Geneva :  United Nations,  1977. 
 - United Nations. Research Insitute for Social Development. UNRISD Research Data Bank of Development Indicators. Report ;  No. 77.2 .
 - United Nations. Research Insitute for Social Development. UNRISD Research Data Bank of Development Indicators. Report ;  United Nations. Research Insitute for Social Development. UNRISD Research Data Bank of Development Indicators. Report ;  United Nations. Research Insitute for Social Development. UNRISD Research Data Bank of Development Indicators. Report ;  United Nations. Research Insitute for Social Development. UNRISD Research Data Bank of Development Indicators. Report ;  No. 77.2 .
<br/><br/> "Prepared by the Statistical Unit of the Institute." 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Developing countries -- Economic indicators.--Developing countries -- Economic indicators.