Nutrition and working efficiency 

 - Rome:  Food and Agriculture Organization of the United Nations,  1962 
 - vi, 47p.;  23cm. 
 - FFHC basic study No.  5 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Dietetics<br/>Promotion of health
<br/><br/><label>Dewey Class. No.: </label>613.2  / NUT