APA:
Polak, Slavko (1997). A classification of the subterranean environment and cave fauna.
Acta carsologica, letnik 26, številka 2, str. 351-359.
URN:NBN:SI:DOC-R9093SU6 from http://www.dlib.si
MLA:
Polak, Slavko. "A classification of the subterranean environment and cave fauna."
Acta carsologica letnik 26. številka 2 (1997) str. 351-359.
<http://www.dlib.si/?URN=URN:NBN:SI:DOC-R9093SU6>