APA Edition Citation

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

Chicago Edition Citation

Orr, J. M. Libraries as Communication Systems. Westport: Greenwood Press, 1977.

MLA Edition Citation

Orr, J. M. Libraries as Communication Systems. Greenwood Press, 1977.

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