Gaya APA
Neve, G, A, D. (1981).
Notes on Krakatau Eruption of 1883 , its Earlier Activities is Historic Time and in the Quarternary .
Bandung, Jawa Barat, Indonesia:
Pusat Vulkanologi dan Mitigasi Bencana Geologi.
Gaya MLA
Neve, George, A., De.
"Notes on Krakatau Eruption of 1883 , its Earlier Activities is Historic Time and in the Quarternary".
Bandung, Jawa Barat, Indonesia:
Pusat Vulkanologi dan Mitigasi Bencana Geologi,
1981.
Text.