APA (7th ed.) Citation

Hill, A. F. (1991). Insight guides: Portugal. APA Pub.

Chicago Style (17th ed.) Citation

Hill, Alison F. Insight Guides: Portugal. Singapore: APA Pub, 1991.

MLA (9th ed.) Citation

Hill, Alison F. Insight Guides: Portugal. APA Pub, 1991.

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