Tilp, Frederick <br/><br/>
This Was Potomac River 

 - Bladensburg, MD  1978 
 - 358 pages 
<br/><br/> Contains map, photographs, drawings 
<br/><br/><label>ISBN: </label>0960178619 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>1.  Potomac River-History 2.  Potomac River Valley-History
<br/><br/><label>LC Class. No.: </label>7861374