Gaya APA
Basic Economics. (1968).
Saffolk:
Macdonald and Evans.
Gaya Chicago
Basic Economics.
Ed.1, Cet.3.
Saffolk:
Macdonald and Evans,
1968.
.
Gaya MLA
Basic Economics.
Ed.1, Cet.3.
Saffolk:
Macdonald and Evans,
1968.
.
Gaya Turabian
Basic Economics.
Saffolk:
Macdonald and Evans,
1968.
.