[en] [Gutenberg 47423] • Vine and Olive; Or, Young America in Spain and Portugal / A Story of Travel and Adventure Createspace Independent Publishing Platform
[en] Berlitz Pocket Guide Portugal Berlitz Travel
[en] [Billionaires & Bodyguards 04] • Fire Maidens · Portugal Twin Moon Press
[en] Insight Guides Portugal Apa Productions
[fr] [Guide Voyage 03] • Portugal 2012 Andalusine - TAZ
[en] [Gutenberg 45581] • The Story of the Nations: Portugal Createspace Independent Publishing Platform
[pt] [Gutenberg 24412] • O credito agricola em Portugal Quality Classics