Gaya APA
Journal of Volcanology and Geothermal Research Vol. 76 No.1-2 March, 1997. ().
Amsterdam:
Elsevier Science Publishers B.V..
Gaya MLA
Journal of Volcanology and Geothermal Research Vol. 76 No.1-2 March, 1997.
.
Amsterdam:
Elsevier Science Publishers B.V.,
.
.