Maddison, Angus. <br/><br/>
Monitoring the world economy, 1820-1992. 

 - Paris :  OECD,  1995. 
<br/><br/> This book is intended to help and encourage basic research on quantitative economic history. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economic conditions.<br/>Economic development -- Economic history.--Economic development -- Economic history.