SCS national engineering handbook, section 4, hydrology. 

 - Washington:   Govt. Print. Off.,   1972-.  
 - 1 v. :  ill., maps ;  27 cm. 
<br/><br/> Cover title.  Loose-leaf.  "This handbook was first issued in November 1954, titled Hydrology guide for use in watershed planning." 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hydrology
<br/><br/><label>Dewey Class. No.: </label>551.48