Hagen, Birger Kare. <br/><br/>
Physical work load and perceived exertion during forest work and exp eriment repetitive learning :   with special reference to lifting tech nique /  
by Kare B. Hagen. 
 - Stockholm :   Karolinska Institute,   1994. 
 - 297 p. ;    25 cm. 
<br/><br/>Includes bibliographic references. 
<br/><br/><label>ISBN: </label>962811959 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Forests and forestry.--------<br/>Workload.--------
<br/><br/><label>Dewey Class. No.: </label>634.95