Gaya APA
Pertamina Indonesian national oil, [by] A.G.Bartlett III, R.J.Barton, J.C.Bartlett dll. . (1972).
Djakarta dsl:
Amerasion.
Gaya MLA
Pertamina Indonesian national oil, [by] A.G.Bartlett III, R.J.Barton, J.C.Bartlett dll. .
.
Djakarta dsl:
Amerasion,
1972.
Buku.