Popov, B., Nedeva, S. Tour Guiding in English. Varna: Science a. Economic Publ. House, 2015 282 p. 978-954-21-0840-5.
Popov, B., Nedeva, S. Tour Guiding in English. Varna: Science a. Economic Publ. House, 2015 282 p. 978-954-21-0840-5.
Popov, B., Nedeva, S. (2015) Tour Guiding in English, Varna: Science a. Economic Publ. House 282 p. 978-954-21-0840-5.
Popov, B., & Nedeva, S. (2015). Tour Guiding in English. Bulgaria's Black Sea Coast : [Handbook for Students at the College of Tourism - UE - Varna]. Varna: Science a. Economic Publ. House, 282 p.
Popov B, Nedeva S. Tour Guiding in English: Bulgaria's Black Sea Coast : [Handbook for Students at the College of Tourism - UE - Varna]. Varna: Science a. Economic Publ. House; 2015. p. 282 p. ISBN: 978-954-21-0840-5.
