Gaya APA
ROLL, Erich. (1955).
Elements Of Economic Theory .
London:
Oxford University Press.
Gaya Chicago
ROLL, Erich.
Elements Of Economic Theory.
London:
Oxford University Press,
1955.
Teks.
Gaya MLA
ROLL, Erich.
Elements Of Economic Theory.
London:
Oxford University Press,
1955.
Teks.
Gaya Turabian
ROLL, Erich.
Elements Of Economic Theory.
London:
Oxford University Press,
1955.
Teks.