Gaya APA

Kemmerling, G, L, L. (1921). The Volcanological History of The G.Kelud According To The Existing Literature The Outbursts and Volcanic Phenomena in Chronologic Sequence . Bandung, Jawa Barat, Indonesia: Pusat Vulkanologi dan Mitigasi Bencana Geologi.

Gaya MLA

Kemmerling, G., L., L.. "The Volcanological History of The G.Kelud According To The Existing Literature The Outbursts and Volcanic Phenomena in Chronologic Sequence". Bandung, Jawa Barat, Indonesia: Pusat Vulkanologi dan Mitigasi Bencana Geologi, 1921. Text.