APA Citation

Ratzan, L. (2009). Understanding information systems: What they do and why we need them. Chicago: American Library Association.

Chicago Style Citation

Ratzan, Lee. Understanding Information Systems: What They Do and Why We Need Them. Chicago: American Library Association, 2009.

MLA Citation

Ratzan, Lee. Understanding Information Systems: What They Do and Why We Need Them. Chicago: American Library Association, 2009.

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