Hall, A. <br/><br/>
The Geology of Pretoria and Neighbourhood: An Explanation of the Geological Map of the Environs of Pretoria 

 - 1 - 55 
<br/><br/><label>ISBN: </label>80-85314-30-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Slovakia--Orava River Valley