Gaya APA

Ongkosongo, O, S. (1983). Coastal Geomorphology of Cilegon - Labuhan, West Jawa, With Special Emphasis On The 1883 Krakatau (Agustus 1983). Jakarta: National Intitute of Oceanology.

Gaya MLA

Ongkosongo, Otto, S.R.. "Coastal Geomorphology of Cilegon - Labuhan, West Jawa, With Special Emphasis On The 1883 Krakatau". Agustus 1983 Jakarta: National Intitute of Oceanology, 1983. Text.