Struckmeier F. Wilhelm. <br/><br/>
Hydrogeological maps:  a guide and a standard legend /  
Wilhelm F. Struckmeier, Jean Margat. 
 - xvi.177p.  ill. 
 - International contributions to hydrogeology.  17. .
<br/><br/><label>Subjects--Topical Terms: </label><br/>geology.