Gaya APA

Geologi, D. (1961). Bulletin of the volcanological survey of Indonesia for the period 1950 1957 (1961). : Bandung : Djawatan Geologi, Bandung,.

Gaya MLA

Geologi, Djawatan. "Bulletin of the volcanological survey of Indonesia for the period 1950 1957". 1961 : Bandung : Djawatan Geologi, Bandung,, 1961. Text.