Steves, R. (2005). Rick Steves' Europe. Back Door Productions.
Cita Chicago Style (17a ed.)Steves, Rick. Rick Steves' Europe. Edmonds, WA: Back Door Productions, 2005.
Cita MLA (8a ed.)Steves, Rick. Rick Steves' Europe. Back Door Productions, 2005.
Precaución: Estas citas no son 100% exactas.