Gaya APA
Fitch, F, D. (1963).
Procedings of the British Borneo Geological Conference 1961 .
Sarawak:
Geological Survey Department.
Gaya MLA
Fitch, FH., Dkk.
"Procedings of the British Borneo Geological Conference 1961".
Sarawak:
Geological Survey Department,
1963.
Text.