Wackerman, A. E. <br/><br/>
Harvesting timber crops / 
A. E. Wackerman, W. D. Hagenstein, A. S. Michell. 
 - New York :  McGraw-Hill,  1966. 
 - xii, 540 p.  ill. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logging--vocational guidance.<br/>Harvesting--technique.