Gaya APA

Hardjosoesastro, R., Dai, J. (1983). Pumiceous Tuff of the Eruption of Krakatau in 1883 on Rakata Islands and its Development . Bandung, Jawa Barat, Indonesia: Pusat Vulkanologi dan Mitigasi Bencana Geologi.

Gaya MLA

Hardjosoesastro, Rachmat., Dai, Junus. "Pumiceous Tuff of the Eruption of Krakatau in 1883 on Rakata Islands and its Development". Bandung, Jawa Barat, Indonesia: Pusat Vulkanologi dan Mitigasi Bencana Geologi, 1983. Text.