Amar, Jules,  1879- <br/><br/>
The human motor :  or the scientific foundations of labour and industry / 
by Jules Amar 
 - ltd, London  George Routledge&sons  1920 
 - xv, 470 p. :  ill. ;  24 cm. 
 - Health,physical education and recreation reprint series .
<br/><br/> Include index  Translated by Elsie p.Butterworth and george E.wright 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Work<br/>Physiology