Gaya APA
Warman, M. et al (1962).
Report On The Result Of Survey Reconnaissance Works In Karangbolong Cave Phosphorite Deposid, Carried Out In March-October .
Bandung:
Pusat Sumber Daya Geologi.
Gaya MLA
Warman, Mr.. et al.
"Report On The Result Of Survey Reconnaissance Works In Karangbolong Cave Phosphorite Deposid, Carried Out In March-October".
Bandung:
Pusat Sumber Daya Geologi,
1962.
Bukan Logam.