APA (7th ed.) Citation

Steves, R., Green, B., Kotz, S., Leutzinger, R., & Openshaw, G. (2025). Rick Steves' Portugal 2025 (Thirteenth edition.). Avalon Travel.

Chicago Style (17th ed.) Citation

Steves, Rick, Ben Green, Suzanne Kotz, Rosie Leutzinger, and Gene Openshaw. Rick Steves' Portugal 2025. Thirteenth edition. Berkeley, Calif.: Avalon Travel, 2025.

MLA (8th ed.) Citation

Steves, Rick, et al. Rick Steves' Portugal 2025. Thirteenth edition. Avalon Travel, 2025.

Warning: These citations may not always be 100% accurate.