APA: 
Lovrenčič, Barbara, Bohinc, Anita, Petreski, Tadej, Koren, Zoran (2022). The Covid-19 pandemic and acute cholecystitis – report from the General Hospital Ptuj. 
Surgery and surgical endoscopy, letnik 4, številka 1, suppl., str. 39. 
URN:NBN:SI:doc-CWLYON4B from http://www.dlib.si
 
                           MLA: 
Lovrenčič, Barbara, Bohinc, Anita, Petreski, Tadej, Koren, Zoran. "The Covid-19 pandemic and acute cholecystitis – report from the General Hospital Ptuj." 
Surgery and surgical endoscopy letnik 4. številka 1. suppl. (2022) str. 39.
<http://www.dlib.si/?URN=URN:NBN:SI:doc-CWLYON4B>