Gaya APA
PEI,Mario. (1980).
THE NEW book of Knolegde .
Canada:
Grolier International.
Gaya Chicago
PEI,Mario.
THE NEW book of Knolegde.
Canada:
Grolier International,
1980.
Reference.
Gaya MLA
PEI,Mario.
THE NEW book of Knolegde.
Canada:
Grolier International,
1980.
Reference.
Gaya Turabian
PEI,Mario.
THE NEW book of Knolegde.
Canada:
Grolier International,
1980.
Reference.