Gaya APA
IAVCEI, . (1992).
Bulletin of Volcanology Volume 54 Number 7 September 1992 .
Heidelberg:
Springer International.
Gaya MLA
IAVCEI, .
"Bulletin of Volcanology Volume 54 Number 7 September 1992".
Heidelberg:
Springer International,
1992.
Text.