Martins, J. P. (2006). Wine in Portugal. Post Office Collector's Club.
Cita Chicago Style (17a ed.)Martins, João Paulo. Wine in Portugal. Post Office Collector's Club, 2006.
Cita MLA (8a ed.)Martins, João Paulo. Wine in Portugal. Post Office Collector's Club, 2006.
Precaución: Estas citas no son 100% exactas.