APA (7th ed.) Citation

Hopkins, Little, & Owen. (1999). Madrid: Eyewitness travel guides. Dorling Kindersley.

Chicago Style (17th ed.) Citation

Hopkins, Little, and Owen. Madrid: Eyewitness Travel Guides. London: Dorling Kindersley, 1999.

MLA (9th ed.) Citation

Hopkins, et al. Madrid: Eyewitness Travel Guides. Dorling Kindersley, 1999.

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