Gaya APA

Newe, G, D. (1981). Historical Notes on Krakatau's Eruption of 1883 and Its Activities in Previous Time . Direktorat Vulkanologi: Workshop LIPI-UNU.

Gaya MLA

Newe, G.A., De. "Historical Notes on Krakatau's Eruption of 1883 and Its Activities in Previous Time". Direktorat Vulkanologi: Workshop LIPI-UNU, 1981. Text.