NATIONAL HANDBOOK OF RECOMMENDED METHODS FOR WATER-DATA ACQUISITION 

 - Virginia :  Office of Water Data Coordination,  1977 
 - Various pagings 
<br/><br/><br/>In English 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water-Data Acquisition
<br/><br/><label>Universal Decimal Class. No.: </label>551.48/.49