Cita APA (7a ed.)
ebrary, Inc. (2010). The future of the natural gas market in South East Europe. World Bank.
Cita Chicago Style (17a ed.)
ebrary, Inc. The Future of the Natural Gas Market in South East Europe. Washington, D.C.: World Bank, 2010.
Cita MLA (9a ed.)
ebrary, Inc. The Future of the Natural Gas Market in South East Europe. World Bank, 2010.
Precaución: Estas citas no son 100% exactas.