Steves, R. (2025). Switzerland 2025 (12th edition.). Avalon Travel.
Cita Chicago Style (17a ed.)Steves, Rick. Switzerland 2025. 12th edition. Oakland, CA: Avalon Travel, 2025.
Cita MLA (8a ed.)Steves, Rick. Switzerland 2025. 12th edition. Avalon Travel, 2025.
Precaución: Estas citas no son 100% exactas.