Robertson, Robert J <br/><br/>
Perceived exertion for practitioners : rating effort with the OMNI picture system 
Robert J. Robertson 
 - Champaign, IL  Human Kinetics  c2004 
 - xi, 171 p. : ill. ; 23 cm 
<br/><br/> Includes bibliographical references (p. 159-164) and index 
<br/><br/><label>ISBN: </label>9780736048378 
<br/><br/><label>ISSN: </label>2004000929 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Exercise - Measurement<br/>Exercise - Psychological aspects<br/>Exercise Test<br/>Exertion - physiology<br/>Perception<br/>Perception - physiology
<br/><br/><label>Dewey Class. No.: </label>612.044 ROB