Gaya APA
Sartono, S. (1964).
Stratigraphy and Sedimentation of the Easternmost Part of Gunung Sewu (East Java) .
Bandung:
Departemen Perindustrian Dasar/Pertambangan Direktorat Geologi.
Gaya MLA
Sartono, S..
"Stratigraphy and Sedimentation of the Easternmost Part of Gunung Sewu (East Java)".
Bandung:
Departemen Perindustrian Dasar/Pertambangan Direktorat Geologi,
1964.
Text.