Gaya APA
Economics A Contemporary Introduction. (1998).
Ohio:
South-Western Publishing.
Gaya Chicago
Economics A Contemporary Introduction.
.
Ohio:
South-Western Publishing,
1998.
.
Gaya MLA
Economics A Contemporary Introduction.
.
Ohio:
South-Western Publishing,
1998.
.
Gaya Turabian
Economics A Contemporary Introduction.
Ohio:
South-Western Publishing,
1998.
.