Casper, Matthias, Stephan Harbarth and Jan Thiessen. Band 4 §§ 161-237. Berlin, Boston: De Gruyter, 2013. Web. Retrieved 19 Jun. 2013, from http://www.degruyter.com/view/product/22378

Casper, M., Harbarth, S. & Thiessen, J. (2013). Band 4 §§ 161-237. Berlin, Boston: De Gruyter. Retrieved 19 Jun. 2013, from http://www.degruyter.com/view/product/22378

Casper, Matthias, Stephan Harbarth and Jan Thiessen. 2013. Band 4 §§ 161-237. Berlin, Boston: De Gruyter. Retrieved 19 Jun. 2013, from http://www.degruyter.com/view/product/22378