Gaya APA
Barbier, Edward. (2005).
Natural resources and economic development .
Cambridge:
Cambridge University Press.
Gaya Chicago
Barbier, Edward.
Natural resources and economic development.
Cambridge:
Cambridge University Press,
2005.
Text.
Gaya MLA
Barbier, Edward.
Natural resources and economic development.
Cambridge:
Cambridge University Press,
2005.
Text.
Gaya Turabian
Barbier, Edward.
Natural resources and economic development.
Cambridge:
Cambridge University Press,
2005.
Print.