Popov, B. In and around Varna. Варна: Университетско издателство, 2001 82 с.
Popov, B. In and around Varna. Варна: Университетско издателство, 2001 82 с.
Popov, B. (2001) In and around Varna, Варна: Университетско издателство 82 с.
Popov, B. (2001). In and around Varna. My first year in the college of tourism. A manual for english-speaking guides and studennts of tourism. Compiled. Варна: Университетско издателство, 82 с.
Popov B. In and around Varna: My first year in the college of tourism. A manual for english-speaking guides and studennts of tourism. Compiled. Варна: Университетско издателство; 2001. p. 82 с.