Gaya APA

Geologits, T, I, A, O. (1991). Proceedings of International Conference on Vulcanology and Geothermal Technology . Bandung: The Indonesian Association of Geologits.

Gaya MLA

Geologits, The, Indonesian, Association, Of. "Proceedings of International Conference on Vulcanology and Geothermal Technology". Bandung: The Indonesian Association of Geologits, 1991. Text.