Gaya APA
H.redenz, . (1957).
General information To the Planning Of An indonesian iron -and steel in dustary .
dusseldorf:
Wedexro.
Gaya MLA
H.redenz, .
"General information To the Planning Of An indonesian iron -and steel in dustary".
dusseldorf:
Wedexro,
1957.
Batubara.