APA (7th ed.) Citation

Orr, J. M. (1977). Libraries as communication systems. Greenwood Press.

Chicago Style (17th ed.) Citation

Orr, James McConnell. Libraries as Communication Systems. Westport, Conn.: Greenwood Press, 1977.

MLA (8th ed.) Citation

Orr, James McConnell. Libraries as Communication Systems. Greenwood Press, 1977.

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