APA (7th ed.) Citation

Georgiev, E. I. (1968). Bulgaria's share in human culture. Sofia Press.

Chicago Style (17th ed.) Citation

Georgiev, Emil Ivanov. Bulgaria's Share in Human Culture. Sofia]: Sofia Press, 1968.

MLA (9th ed.) Citation

Georgiev, Emil Ivanov. Bulgaria's Share in Human Culture. Sofia Press, 1968.

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