Humphrys  ,  L.G. <br/><br/>
Your body at work. Edited by John Cutforth and J.C.  Gagg 

 - Oxford  Basil  Blackwell  1963 
<br/><br/><label>ISBN: </label>978 0 631 06510 4 
<br/><br/><label>Dewey Class. No.: </label>J612 HUM