Vierhapper, Fritz. <br/><br/>
Beitrage zur kenntnis der flora sudarabiens und der inseln Sokotra, Semha und Abd El Kuri / 
von Fritz Vierhapper. 
 - Wien, Austria :  Ex-Hereditate,  1907. 
 - 1v. (various pagings) :  ill. ;  27 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botany--Yemen (Republic)--Abd El Kuri.<br/>Botany--Yemen (Republic)--Semha.<br/>Botany--Yemen (Republic)--Socotra.<br/>Natural history--Yemen (Republic)--Socotra.<br/>Plants--Yemen (Republic)--Socotra.--Nomenclature
<br/><br/><label>Dewey Class. No.: </label>581.9532