Gaya APA
, ., Djojohadikusumo, S.
(1974).
Energy and raw materials present and future
.
Jakarta:
Jakarta: [s.n]; 1974.
Gaya MLA
, ., Djojohadikusumo, Sumitro.
"Energy and raw materials present and future".
Jakarta:
Jakarta: [s.n]; 1974,
1974.
Text.