Positional release techniques 
Positional release techniques 
 - 4th ed.  "xviii, 251 p. : ill. ; 25 cm.,pbk." 
 - London  Elsevier  2016 
<br/><br/><label>ISBN: </label>9780702051111 
<br/><br/><label>Dewey Class. No.: </label>615.822 CHA  / 22.615.822 CHA