Timber in excavations. /  [Books]. 
TRADA.  
 - 3rd ed. 
 - London :   TRADA,   Thomas Telford,   1990 
 - xv, 75 p. :  ill. ;  30cm. 
<br/><br/><label>ISBN: </label>0901348813 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Excavation.<br/>Retaining walls.<br/>Timber
<br/><br/><label>Subjects--Index Terms: </label>Construction  Use of  Timber