Duboff,Richard B. <br/><br/>
Accumulation and pawer an edonomic history of the united states 
/ Richard B.Duboff 
. - New York  : M.E Sharpe, 1989
. - 221 p.  ; 23 cm. 
<br/><br/><label>ISBN: </label>0873325168 
<br/><br/><label>Source: </label> Don du CCA 
<br/><br/><label>Universal Decimal Class. No.: </label>339