APA: 
Spangenberg, Jorge E., Ogrinc, Nives (1999). Characterization of olive oils from Slovenia and Croatia by compound specific isotope analysis. 
Annales. Series historia naturalis, letnik 9, številka 17, supl. str. 1-4. 
URN:NBN:SI:DOC-6D8BSKAP from http://www.dlib.si
 
                           MLA: 
Spangenberg, Jorge E., Ogrinc, Nives. "Characterization of olive oils from Slovenia and Croatia by compound specific isotope analysis." 
Annales. Series historia naturalis letnik 9. številka 17 (1999) supl. str. 1-4.
<http://www.dlib.si/?URN=URN:NBN:SI:DOC-6D8BSKAP>