Band 7 Register. Berlin, Boston: De Gruyter, 2013. Web. Retrieved 21 May. 2013, from http://www.degruyter.com/view/product/43302

Band 7 Register. (2013). Berlin, Boston: De Gruyter. Retrieved 21 May. 2013, from http://www.degruyter.com/view/product/43302

Band 7 Register. 2013. Berlin, Boston: De Gruyter. Retrieved 21 May. 2013, from http://www.degruyter.com/view/product/43302