Health factors involved in working under conditions of heat stress :  report of a WHO scientific group. 

 - Geneva :  World health organization,  c 1969. 
 - 32 p. ;  24 cm. 
 - World health organization technical report series, No. 412. .
<br/><br/>314  314 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Labor unions--labor-management.
<br/><br/><label>Dewey Class. No.: </label>331.82 / W893h