Gaya APA
Stehn, C. (1940).
Hot Springs and Solfatara's In Larantuka and Central Flores .
Bandung:
V ulkanol & Seism , Med n 13,.
Gaya MLA
Stehn, Chs.E..
"Hot Springs and Solfatara's In Larantuka and Central Flores".
Bandung:
V ulkanol & Seism , Med n 13,,
1940.
Gunung Api.