Gaya APA
Pederson, Barbara L.. (1990).
Unocal 1890-1990: a century of spirit / Barbara L. Pederson .
:
Los Angeles: Unocal Corporation.
Gaya Chicago
Pederson, Barbara L..
Unocal 1890-1990: a century of spirit / Barbara L. Pederson.
:
Los Angeles: Unocal Corporation,
1990.
Buku.
Gaya MLA
Pederson, Barbara L..
Unocal 1890-1990: a century of spirit / Barbara L. Pederson.
:
Los Angeles: Unocal Corporation,
1990.
Buku.
Gaya Turabian
Pederson, Barbara L..
Unocal 1890-1990: a century of spirit / Barbara L. Pederson.
:
Los Angeles: Unocal Corporation,
1990.
Buku.