Conway, Steve <br/><br/>
Logging practices :  principles of timber harvesting systems / 
Steve Conway 
 - Rev. ed. 
 - San Francisco :  Miller Freeman Publications,  1982 
 - 432 p. :  ill. ;  24 cm. 
<br/><br/> 'A Forest Industries book.' 
<br/><br/>p. (415)-426 
<br/><br/><label>ISBN: </label>0879301449 
<br/><br/><label>LCCN: </label>82-080487 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logging<br/>Logging--North America