Neujahrsblatt herausgegeben von der Naturforschenden Gesellschaft in Zürich :  2004. 

 -  Naturforschende Gesellschaft, 
 - v. :  ill. 
<br/><br/> Description based on : Stück 207 (2004). 
<br/><br/><label>ISSN: </label>0379-1327 
<br/><br/><label>Subjects--Index Terms: </label>Nature, Periodicals. ბუნება პერიოდიკა 
<br/><br/><label>Universal Decimal Class. No.: </label>502(05)