Gaya APA

Berry, J. (2005). Tangible Strategies for Intangible Assets: Managing and Measuring Intellectual Property, Intellectual capital, and other critical sources of value (Cet 1). USA: McGrawHill.

Gaya MLA

Berry, John. "Tangible Strategies for Intangible Assets: Managing and Measuring Intellectual Property, Intellectual capital, and other critical sources of value". Cet 1 USA: McGrawHill, 2005. Text.