Gaya APA
Patzold, W. (1974).
Sumatra Regional Planning Study Province South Sumatra Industri .
Bandung:
Pusat Sumber Daya Geologi.
Gaya MLA
Patzold, W..
"Sumatra Regional Planning Study Province South Sumatra Industri".
Bandung:
Pusat Sumber Daya Geologi,
1974.
Bukan Logam.