Gaya APA
Clynch, R. (1971).
Final Report 1970-1971 Recconaisance Concession Block 10 And 11 Sumatra, Indonesia .
Bandung:
P.T Cennecott.
Gaya MLA
Clynch, R.E..
"Final Report 1970-1971 Recconaisance Concession Block 10 And 11 Sumatra, Indonesia".
Bandung:
P.T Cennecott,
1971.
Logam.