APA Style
DJOJOHADIKUSUMO, S.
(1974).
Energy and Raw Materials: present and future
(
1)
.
Jakarta:
Tanpa Penerbit.
MLA Style
DJOJOHADIKUSUMO, SUMITRO.
"Energy and Raw Materials: present and future".
1
Jakarta:
Tanpa Penerbit,
1974.
Text.