Dobbs, D. A. C. <br/><br/>
Operational research and action research /  
H. A. C. Dobbs 
 - Washington, D. C. :    Institute of Ethnic Affairs,    1947. 
 - 21 p. ;    21 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Research
<br/><br/><label>Dewey Class. No.: </label>P 001.4 OPE