Gaya APA
Stoiber, R, E. (1983).
Volcanic Gas From The Krakatau Eruptions of 1883 (Agustus 1983).
U.S.A.:
Departement of Earth Science.
Gaya MLA
Stoiber, Richard, E..
"Volcanic Gas From The Krakatau Eruptions of 1883".
Agustus 1983
U.S.A.:
Departement of Earth Science,
1983.
Text.