APA (7th ed.) Citation

Hopper, R. (1976). Human message systems. Harper & Row.

Chicago Style (17th ed.) Citation

Hopper, Robert. Human Message Systems. New York: Harper & Row, 1976.

MLA (9th ed.) Citation

Hopper, Robert. Human Message Systems. Harper & Row, 1976.

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