Louis, Herbert,  1900- <br/><br/>
Morphologische Studien in Südwest-Bulgarien, 
von Dr. Herbert Louis ... 
 - Stuttgart,  Verlag von J. Engelhorns nachf.,  1930. 
 - 119 p.  incl. tables. VIII pl., 2 fold. maps.  23 1/2 cm. 
 - Geographische Abhandlungen,  Reihe 3, Hft. 2 .
<br/><br/>Bibliographical foot-notes. 
<br/><br/><label>LCCN: </label>gs 31000240  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physical geography--Bulgaria.
<br/><br/><label>LC Class. No.: </label>G58  / .G36 3. reihe, hft. 2.