"15 Commercial intelligence search and analysis" Information Sources in Patents. Berlin, Boston: DE GRUYTER SAUR, 2011. 270-274. Web. Retrieved 25 May. 2013, from http://www.degruyter.com/view/books/9783110235128/9783110235128.270/9783110235128.270.xml

15 Commercial intelligence search and analysis (2011). Information Sources in Patents (pp. 270-274). Berlin, Boston: DE GRUYTER SAUR. Retrieved 25 May. 2013, from http://www.degruyter.com/view/books/9783110235128/9783110235128.270/9783110235128.270.xml

15 Commercial intelligence search and analysis. 2011. In Information Sources in Patents, 270-274. Berlin, Boston: DE GRUYTER SAUR. Retrieved 25 May. 2013, from http://www.degruyter.com/view/books/9783110235128/9783110235128.270/9783110235128.270.xml