Gaya APA
Economic development. (1980).
San Fransisco:
W.H. Freeman.
Gaya Chicago
Economic development.
.
San Fransisco:
W.H. Freeman,
1980.
Text.
Gaya MLA
Economic development.
.
San Fransisco:
W.H. Freeman,
1980.
Text.
Gaya Turabian
Economic development.
San Fransisco:
W.H. Freeman,
1980.
Print.