Sachs, Ignacy, <br/><br/>
Planning and economic development / 
With a foreword by oskar lange 
 - 259 páginas 
 - Studies on developing countries ;  1 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Desarrollo económico
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Países en desarrollo
<br/><br/><label>LC Class. No.: </label>HC59  / S323