Simple Treasures in Bulgaria
Bulgaria (Lonely Planet Country Guides)
The Rough Guide to Bulgaria
Chambers Bulgarian Phrasebook
Bulgaria (Globetrotter Travel Map)
Bulgaria (Lonely Planet Country Guides)
Street without a Name
Bulgaria Berlitz Pocket Guide (Berlitz Pocket Guides)
DK Eyewitness Travel Guide: Bulgaria
The Rough Guide to Bulgaria - 5th Edition
Bulgaria (Bradt Travel Guides)
Insight Guides: Bulgaria