APA aipamena

 Cohen, J. A. (2005).  Intangible assets: Valuation and economic benefit.  Wiley.

Chicago Style aipamena

 Cohen, Jeffrey A.  Intangible Assets: Valuation and Economic Benefit.  Wiley, 2005.

MLA aipamena

 Cohen, Jeffrey A.  Intangible Assets: Valuation and Economic Benefit.  Wiley, 2005.