Ferber, Robert <br/><br/>
Research methods in economic & business / 
Robert. Ferber, P.J. Verdoorn. 
 - xiv, 573 pages ;  24 cm 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics--Research
<br/><br/><label>LC Class. No.: </label>H62  / .F47 1962