Gaya APA
Contemporary economic issues. (1973).
Illinois:
Irwin.
Gaya Chicago
Contemporary economic issues.
text.
Illinois:
Irwin,
1973.
.
Gaya MLA
Contemporary economic issues.
text.
Illinois:
Irwin,
1973.
.
Gaya Turabian
Contemporary economic issues.
Illinois:
Irwin,
1973.
.