Gaya APA
Oberg, James E, Oberg, Alcestis R. (1986).
Pioneering space : living on the next fronther .
New York:
McGraw Hill.
Gaya Chicago
Oberg, James E, Oberg, Alcestis R.
Pioneering space : living on the next fronther.
New York:
McGraw Hill,
1986.
Buku.
Gaya MLA
Oberg, James E, Oberg, Alcestis R.
Pioneering space : living on the next fronther.
New York:
McGraw Hill,
1986.
Buku.
Gaya Turabian
Oberg, James E, Oberg, Alcestis R.
Pioneering space : living on the next fronther.
New York:
McGraw Hill,
1986.
Buku.