APA:
Dreybrodt, Wolfgang (2012). Letter.
Acta carsologica, volume 41, issue 1, str. 157-160.
URN:NBN:SI:DOC-Q7RPYLGT from http://www.dlib.si
MLA:
Dreybrodt, Wolfgang. "Letter."
Acta carsologica volume 41. issue 1 (2012) str. 157-160.
<http://www.dlib.si/?URN=URN:NBN:SI:DOC-Q7RPYLGT>