Gaya APA
SUMARDJO,H., . (1963).
First report on the geological investigation at Teluk Dalam near Tanjung Balai, Asahan, North Sumatera .
:
.
Gaya MLA
SUMARDJO,H., .
"First report on the geological investigation at Teluk Dalam near Tanjung Balai, Asahan, North Sumatera".
:
,
1963.
Laporan.