Gaya APA

Kemmerling, G, L, L. (1921). The Old Mantle of G .Merapi(See Plate IIIa and IV)., A Few Considerations On The G.Merapi . Bandung, Jawa Barat, Indonesia: Pusat Vulkanologi dan Mitigasi Bencana Geologi.

Gaya MLA

Kemmerling, G., L., L.. "The Old Mantle of G .Merapi(See Plate IIIa and IV)., A Few Considerations On The G.Merapi". Bandung, Jawa Barat, Indonesia: Pusat Vulkanologi dan Mitigasi Bencana Geologi, 1921. Text.