Cita APA

 Wiegé, K. (2013).  Software requirements.  Microsoft Press, s division of Microsoft Corporation.

Chicago Style Citation

 Wiegé, Karl.  Software Requirements.  Microsoft Press, s division of Microsoft Corporation, 2013.

Cita MLA

 Wiegé, Karl.  Software Requirements.  Microsoft Press, s division of Microsoft Corporation, 2013.

Atenció: Aquestes cites poden no estar 100% correctes.