APA (7th ed.) Citation

Hellman, H. (1969). Communications in the world of the future. M. Evans.

Chicago Style (17th ed.) Citation

Hellman, Harold. Communications in the World of the Future. New York: M. Evans, 1969.

MLA (9th ed.) Citation

Hellman, Harold. Communications in the World of the Future. M. Evans, 1969.

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