Dent, D. Douglas <br/><br/>
Professional timber falling :  a procedural approach / 
D. Douglas Dent. 
 - Beaverton, Or. :  Dent,  1974. 
 - 182 p. :  ill.  22 cm. 
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Tree felling
<br/><br/><label>Dewey Class. No.: </label>634.9  / 82