Gaya APA
KATILI, J, A. (1960).
Geological investigations in the lassi granite mass (Central Sumatra) .
:
Institute Teknologi Bandung.
Gaya MLA
KATILI, JOHN, A.
"Geological investigations in the lassi granite mass (Central Sumatra)".
:
Institute Teknologi Bandung,
1960.
Textbook.