Sparrow, Andrew Peter (2006). "Protecting and exploiting IPR". Music Distribution and the Internet: A Legal Guide for the Music Business. Gower Publishing, Ltd. p. 40. ISBN056608709X. Archived from the original on 2015-04-11. Retrieved 2015-04-03.
Sparrow, Andrew Peter (2006). "Protecting and exploiting IPR". Music Distribution and the Internet: A Legal Guide for the Music Business. Gower Publishing, Ltd. p. 40. ISBN056608709X. Archived from the original on 2015-04-11. Retrieved 2015-04-03.