Gaya APA
Bammelen, R, V. (1970).
The Geology of Indonesia. vol II, Economics Geology .
Netherlands:
Netherlands : Martinus Nijhoff, The Hague,.
Gaya MLA
Bammelen, R.W., Van.
"The Geology of Indonesia. vol II, Economics Geology".
Netherlands:
Netherlands : Martinus Nijhoff, The Hague,,
1970.
Text.