Halstead, R. R. (1996). Protecting intellectual property: Understanding and using trade marks, patents, designs and copyright in business (2nd ed.). ICSA Pub.
Chicago-Zitierstil (17. Ausg.)Halstead, Richard R. Protecting Intellectual Property: Understanding and Using Trade Marks, Patents, Designs and Copyright in Business. 2nd ed. Hemel Hempstead [Eng.]: ICSA Pub, 1996.
MLA-Zitierstil (9. Ausg.)Halstead, Richard R. Protecting Intellectual Property: Understanding and Using Trade Marks, Patents, Designs and Copyright in Business. 2nd ed. ICSA Pub, 1996.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.