APA (7th ed.) Citation

Helmreich, E. C. (1973). Hungary. Greenwood Press.

Chicago Style (17th ed.) Citation

Helmreich, Ernst Christian. Hungary. Westport, Conn.: Greenwood Press, 1973.

MLA (9th ed.) Citation

Helmreich, Ernst Christian. Hungary. Greenwood Press, 1973.

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