Gaya APA

Journal of Volcanology and Geothermal Research Vol. 13 no. 1-2 July 1982. (). Amsterdam: Elsevier Science Publishers B.V..

Gaya MLA

Journal of Volcanology and Geothermal Research Vol. 13 no. 1-2 July 1982. . Amsterdam: Elsevier Science Publishers B.V., . .