Gaya APA
Bronto, S. (1983).
The Nature of The Krakatau Ash-Flow Deposits (Agustus 1983).
Washington:
DEPARTEMENT OF MINES AND ENERGY.
Gaya MLA
Bronto, Sutikno.
"The Nature of The Krakatau Ash-Flow Deposits".
Agustus 1983
Washington:
DEPARTEMENT OF MINES AND ENERGY,
1983.
Text.