APA Citation

 Rothke, B. (2005).  Computer security: 20 things every employee should know.  McGraw-Hill.

Chicago Style Citation

 Rothke, Ben.  Computer Security: 20 Things Every Employee Should Know.  McGraw-Hill, 2005.

MLA Citation

 Rothke, Ben.  Computer Security: 20 Things Every Employee Should Know.  McGraw-Hill, 2005.

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