APA
Società speleologica italiana, International Union of Speleology, . (1964). International journal of speleology. Roma (Italia): Societa Speleologica Italiana.
Chicago
Società speleologica italiana, International Union of Speleology, . 1964. International journal of speleology. Roma (Italia): Societa Speleologica Italiana.
Harvard
Società speleologica italiana, International Union of Speleology, . (1964). International journal of speleology. Roma (Italia): Societa Speleologica Italiana.
MLA
Società speleologica italiana, International Union of Speleology, . International journal of speleology. Roma (Italia): Societa Speleologica Italiana. 1964.