Gaya APA
PURBOHADIWIDJOJO, M., Hartono, H. (1960).
Geologic report on the site of the proyected super phosphate plant near Cilacap .
:
.
Gaya MLA
PURBOHADIWIDJOJO, M.M.., Hartono, H.M.S.
"Geologic report on the site of the proyected super phosphate plant near Cilacap".
:
,
1960.
Laporan.