Gaya APA
Peterson, Willis L.. (1977).
Principle of Economics : Micro (3rd ed.).
USA:
.
Gaya Chicago
Peterson, Willis L..
Principle of Economics : Micro.
3rd ed.
USA:
,
1977.
Texts.
Gaya MLA
Peterson, Willis L..
Principle of Economics : Micro.
3rd ed.
USA:
,
1977.
Texts.
Gaya Turabian
Peterson, Willis L..
Principle of Economics : Micro.
3rd ed.
USA:
,
1977.
Texts.