APA (7th ed.) Citation

Williams, A. M. (1992). Southern Portugal in the 1990s: A European investment region.

Chicago Style (17th ed.) Citation

Williams, Allan M. Southern Portugal in the 1990s: A European Investment Region. London <<[u.a.]>>, 1992.

MLA (9th ed.) Citation

Williams, Allan M. Southern Portugal in the 1990s: A European Investment Region. 1992.

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