APA:
Habič, Peter, Armbruster, Volker (1997). Underground connection Lokva (Predjama) - the Vipava.
Acta carsologica, volume 26, issue 1, str. 341-343.
URN:NBN:SI:doc-GA9DN7GO from http://www.dlib.si
MLA:
Habič, Peter, Armbruster, Volker. "Underground connection Lokva (Predjama) - the Vipava."
Acta carsologica volume 26. issue 1 (1997) str. 341-343.
<http://www.dlib.si/?URN=URN:NBN:SI:doc-GA9DN7GO>