Measurement and interpretation of job vacancies: a conference report 
by National Bureau of Economic Research, U.S.A. 
 - New York  Columbia University Press  1966 
 - 593p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Occupations<br/>Employment
<br/><br/><label>Dewey Class. No.: </label>R11 N213m