APA (7th ed.) Citation

Steves, R. (1999). Rick Steves' Spain & Portugal, 1999. John Muir Publications.

Chicago Style (17th ed.) Citation

Steves, Rick. Rick Steves' Spain & Portugal, 1999. Santa Fe, N.M.: John Muir Publications, 1999.

MLA (8th ed.) Citation

Steves, Rick. Rick Steves' Spain & Portugal, 1999. John Muir Publications, 1999.

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