NDC publications and U.S. waterway data CD  [computer file].  
 NDC publications and US waterway data CD  

 - Alexandria, VA  U.S. Army Corps of Engineers, Water Resources Support Center, Navigation Data Center  [1998-  
 - computer laser optical discs  col. ill.  4 3/4 in.  
<br/><br/> Description based on v. 4.   "April 1998"--Vol. 4.  
<br/><br/>Includes bibliographical references and index. 
<br/><br/> Contains information about our nation's inland and coastal waterwayts, latest statistics about waterborne commerce, vessel companies, port and waterway facilities, dredging contracts, lock operations and lock characteristics. Also contains aggregated data which summarizes cargo imports and exports, vessel clearances and entrances, etc. from the Bureau of the Census and the U.S. Coast Guard. 
<br/><br/><br/>Disc characteristics: CD-ROM.  
<br/><br/><label>Subjects--Corporate Names: </label><br/>Navigation Data Center U.S.--Bibliography--Databases.     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Waterways--Databases.     --United States<br/>Intracoastal waterways--Databases.--United States
<br/><br/><label>GPO Item No.: </label>0337-B-20 
<br/><br/><label>Gov. Doc. Class. No.: </label>D 103.135:P 96/V.- /CD