APA (7th ed.) Citation

Williams, R. (1991). Insight guides: Catalonia. APa Pub.

Chicago Style (17th ed.) Citation

Williams, Roger. Insight Guides: Catalonia. Singapore: APa Pub, 1991.

MLA (9th ed.) Citation

Williams, Roger. Insight Guides: Catalonia. APa Pub, 1991.

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