APA (7th ed.) Citation

Spas Rusinov. Bulgaria a tourist guide: Bulgaria, a tourist handbook. Sofia Press.

Chicago Style (17th ed.) Citation

Spas Rusinov. Bulgaria a Tourist Guide: Bulgaria, a Tourist Handbook. Bulgaria: Sofia Press.

MLA (8th ed.) Citation

Spas Rusinov. Bulgaria a Tourist Guide: Bulgaria, a Tourist Handbook. Sofia Press.

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