Cita APA (7th ed.)

(1975). Country market: People's Republic of Bulgaria. Trade Information and Publications Section, Export Services Coordinating Division, Bureau of Foreign Trade, Dept. of Trade.

Cita Chicago (17th ed.)

Country Market: People's Republic of Bulgaria. Quezon City: Trade Information and Publications Section, Export Services Coordinating Division, Bureau of Foreign Trade, Dept. of Trade, 1975.

Cita MLA (9th ed.)

Country Market: People's Republic of Bulgaria. Trade Information and Publications Section, Export Services Coordinating Division, Bureau of Foreign Trade, Dept. of Trade, 1975.